Tag: M.W:100-200

Electric Literature of C5H11I. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about Gas chromatography of alkyl iodides. II. Influence of structure on retention time and sensitivity to electron capture detector. Author is Castello, Gianrico; D’Amato, Giuseppina.

The retention times and indexes observed for 34 alkyl iodides during electron-capture gas-liquid chromatog. on a 15% tricresyl phosphate/Chromosorb W (DMCS-treated)column are examined as functions of the number of C atoms, the I position, and the number and position of branchings in the alkyl iodide mols. The relative molar response of the electron-capture detector is useful for detector standardizations since it depends only on the standing current.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Chaudri, B. A.; Hudson, Harry R.; Murphy, William Stephen published an article about the compound: 1-Iodo-2-methylbutane( cas:616-14-8,SMILESS:CCC(CI)C ).Product Details of 616-14-8. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:616-14-8) through the article.

Isomeric pentyl halides were separated by gas chromatog. Two columns were used: a 4 m. × 1/16-in. outer diameter stainless steel column packed with 10% squalane on 80-100-mesh Chromosorb W, N as the carrier at 13-15 ml./min. (column 1), and a 4-m. × 1/8-in. outer diameter stainless steel column packed with 11.5% Bentone 34 + 11.5% silicone MS 555 on 80-100-mesh Chromosorb W, N as the carrier at 25-30 ml./min. (column 2). On column 1, chlorides were analyzed at 20°, bromides and iodides at 40°; on column 2, all analyses were at 40°. A flame ionization detector was used with both columns. tert-Pentyl bromide and iodide decomposed in column 2 although not on column 1. The 3-halogenopentanes were the only isomers that could not be completely separated from all other pentyl structures.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Optical rotation and atomic dimension for the four optically active 1-halo-2-methylbutanes》. Authors are Brauns, Dirk H..The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).Name: 1-Iodo-2-methylbutane. Through the article, more information about this compound (cas:616-14-8) is conveyed.

cf. C. A. 25, 2977. Detailed directions are given for the preparation of pure 2-methyl-1-butanol (I) and its F, Cl, Br and I derivatives. The following properties are described: I b. 128°, b50 65.7°, d420 0.8193, nD20 1.4107, sp. rotation for λ 5892.5 A. -5.756, for 5461 A. -6.835, for 5850 A. -5.78. The last 3 values were taken at about 20°. The corresponding values for the derivatives are: for 1-fluoro-2-methylbutane 55.9°, -, 0.7906, 1.3576, -8.865, -10.477, -8.87; for 1-chloro-2-methylbutane 100.45°, 27.7°, 0.8857, 1.4124, +1.644, +1.847, +1.68; for 1-bromo-2-methylbutane 121.6°, 45.0°, 1.2234, 1.4451, +4.043, +4.707, +4.09; and for 1-iodo-2-methylbutane -, 66.5°, 1.5253, 1.4977, +5.685, +6.626, +5.71. The differences in mol. rotation (Cl-F), (Br-Cl) and (I-Br) have the ratio 41:18:21.6, which agrees with the ratio of the differences of the radii of the respective neutral atoms.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Reference of 1-Iodo-2-methylbutane. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about On labeling with generator nuclides. Author is Otto, R.; Hecht, P..

Short-lived radioisotopes separated from radionuclide generators are widely used. The possibilities of labeling with the daughter nuclides of the com. available Mo/Tc-, Sn/In- and Te/I- generators and of the self-made Ba/La-generator in industrial tracer experiments are presented. The transfer of the daughter nuclides from the generator eluates into organic phases and the labeling of oil-phases and solid particles were investigated. The simple, quick, and efficient methods developed are suitable for routine application under industrial conditions. Some examples of industrial applications of the generator nuclides are given.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Recommanded Product: 1-Iodo-2-methylbutane. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about Preparation of standard mixtures of iodoalkanes by irradiation of iodine solutions in alkanes. Author is Castello, Gianrico; D’Amato, Giuseppina.

Mixtures of iodine with pentane, hexane, 3-methylpentane, 2,2-dimethylbutane, 2,3-dimethylbutane, heptane, 2,2-dimethylpentane, 2,4-dimethylpentane, 3,3-dimethylpentane, octane, 2,2,4-trimethylpentane, and 2,2,5-trimethylhexane were subjected to γ-irradiation and the gas chromatog. retention indexes of the resulting iodoalkanes determined

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Thiomorpholine – Wikipedia,
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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Walden inversion. XIII. The influence of substituting groups on optical rotation in the series of disubstituted acetic acids》. Authors are Levene, P. A.; Mikeska, L. A..The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).Name: 1-Iodo-2-methylbutane. Through the article, more information about this compound (cas:616-14-8) is conveyed.

cf. C. A. 22, 1953. The conclusion that in the aliphatic series the carbinols and the structurally related halides rotate in opposite directions is substantiated by the study of a series of aliphatic substances derived from disubstituted acetic acids or their corresponding carbinols. Primary halides rotate in the opposite direction to the primary alcs. from which they were derived, while in passing from the corresponding thio to the sulfo derivative the change in rotation is in the same direction, though without change of sign. A decided uniformity was found in the effect on optical rotation of various substitutions of the CO2H group or of the alc. group of the corresponding carbinols, depending upon the position of the subsituting group in the polarity series, C = N > CO2Et > CO2H > CONH2 > COCl > CH2SO3H > CH2X > CH2SH > CH2OH > CH2NH2. The order in this series corresponds with the order of the same groups in polarity series determined by other methods. This relationship holds only for aliphatic substances containing only 1 asym. C atom and only 1 polar group. Active primary amyl alc. was halogenated without marked racemization, while in the rest of the series conversion to the halide from the carbinol by SOCl2, PCl5, HBr, HI, etc., as well as from the amine by NOCl2, led to complete racemization. Optically active halides were obtained in the latter case by the action of NOBr. d-Propylmethylacetic acid, [α]D25 5.58° (Et2O), with SOCl2 gave the d-chloride (I), b15 45-8°; [α]D25 4.06°. I, [α]D25 3.94° (Et2O), with concentrated aqueous NH4OH gave the d-amide, m. 78° (from H2O), [α]D25 5.79° (75% alc.). l-Amide, [α]D25-5.79° (75% alc.), distilled with P2O6 gave l-propylmethylacetonitrile (II), b2 30-2°, [α]D25-13.77°. II with Na-alc. gave d-2-propyl-2-methylethylamine (III), b4 28-30°, [α]D25 3.84°, whose HCl salt had [α]D25 1.51° (50% alc.), l-Propylmethylacetic acid, [α]D25-7.08° (Et2O), with HCl gas in alc. gave the Et ester, b4 78-80°, [α]D25-7.91°. d-Acid Et ester, [α]D25 5.67° (Et2O), with Na-alc. gave l-2-propyl-2-methylethanol (IV), b. 147-7.5°, [α]D25-1.23°. IV with PCl5 or NOCl gave dl-2-propyl-2-methylethyl chloride, b. 110-20°. III with NOBr gave l-2-propyl-2-methylethyl bromide, b10 55-65°, [α]D25-0.94° (Et2O). I with KHS gave d-propylmethylthiolacetic acid, b23 71-2°, [α]D25 7.49°. d-Butylmethylacetic acid (V), [α]D25 5.42° (Et2O), with SOCl2 gave the acid chloride (VI), b9 45-8°, [α]D25 5.06°. VI with NH4OH gave the amide (VII), m. 66° (from H2O), [α]D25 3.86° (75% alc.). VII distilled with P2O5 gave the nitrile (VIII), b9 43-50°, [α]D25 9.40°. In another experiment an amide, [α]D25-11.44°, gave a nitrile, [α]D25-27.09° (Et2O). VIII with Na-alc. gave l-2-butyl-2-methylethylamine, b15 49-54°, [α]D25-3.52° (Et2O), whose HCl salt had [α]D25-2.41° (H2O). V with HCl gas and alc. gave an Et ester, b9 58-62°, [α]D25 6.84°, which with Na-alc. gave d-2-butyl-2-methylethanol, b15 71-2°, [α]D25 2.47° (Et2O). d-Heptylmethylacetic acid (IX), b4 145-7°, [α]D25, whose Na salt, [α]D25 0.84° (H2O), was treated with SOCl2, yielding the acid chloride (X), b1 73-4°, [α]D25 4.89°. X with NH4OH gave the amide (XI), m. 78° (from 50% alc.), [α]D25 7.07° (95% alc.), XI with P2O5 gave the nitrile (XII), b7 85-94°, [α]D25 13.61°. XII with Na-alc. gave 1-2-heptyl-2-methylethylamine (XIII), b24, 103-5°, [α]D25-3.38°, whose HBr salt had [°]D25-4.61° (75% alc.), In another experiment an amine, [α]D25 6.05° (Et2O), was obtained from a nitrile, [α]D25 -15.10° (Et2O). An amine, [α]D25 6.05° (Et2O), was obtained from a HBr salt, [α]D25 5.91°. XIII with HBr (fuming) and NaNO2 gave d-2-heptyl-2-methylethyl bromide, b1 80-5°, [α]D25 2.18° (Et2O). l-Heptylmethylacetic acid, [α]D26 -8.72° (Et2O), with HCl gas and alc. gave the Et ester, b17 122-4°, [α]D25 -8.60°, which with Na-alc, gave d-2-heptyl-2-methylethanol, b0.4 80-2°, [α]D25 3.64°. d-Decylmethylacetic acid, b1 153°, [α]D25 8.47°, showed no rotation when neutralized with NaOH. l-Decylmethylacetic acid (XIV), [α]D25 -6.38° (Et2O), with SOCl2 gave the acid chloride (XV), b0.5 118-25°, [α]D25 -3.5°, which was hydrolyzed, yielding an acid, [α]D25 -5.78° (Et2O). XV with NH4OH gave the amide, m. 77° (from 50% alc.), [α]D25 -3.01° (95% alc.), which with P2O5 gave the nitrile, b0.5 108-10°, [α]D25 -10.87° (Et2O), which with Na-alc. gave d-2-decyl-2-methylethylamine (XVI), [α]D25 4.18°, whose HCl salt, m. 105-18°, [α]D25 3.17° (H2O). XIV with HCl gas and alc. gave an Et ester, b1 141°, [α]D25 -6.48°, which with Na-alc. gave l-2-decyl-2-methylethanol, b1.4 105°, [α]D25 2.34°, XVI with NOBr gave l-2-decyl-2-methylethyl bromide, b0.02 87-90°, [α]D25 -0.39. Primary l-amyl alc., [α]D25 -4.73° (Et2O), with HI gave d-2-ethyl-2-methylethyl iodide, b12 47-50°, [α]D25 3.92° (Et2O), which with KHS gave d-2-ethyl-2-methylethanethiol, b. 116-7°, [α]D25 2.99°. In another experiment an iodide, [α]D25 5.27° (Et2O), gave a mercaptan, [α]D25 6.92°, which with Ba(MnO4)2 gave d-2-ethyl-2-methylethanesulfonic acid, whose Ba salt had [α]D25 5.09° (H2O). A table of mol. rotations of the various derivatives, which do not necessarily agree with the exptl. figures, is appended. These values were calculated on the basis of the parent substance of the highest rotation. There is also a table of d.

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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Inukai, Norie; Kawai, Tsuyoshi; Yuasa, Junpei published the article 《Two Distinct Thermal Stabilities of DNA and Enzymatic Activities of DNase I in a Multistep Assembly with Carbazole Ligands: Different Binding Characteristics for Duplex and Quadruplex DNA》. Keywords: DNA DNase I multistep carbazole ligand duplex quadruplex.They researched the compound: 1-Iodo-2-methylbutane( cas:616-14-8 ).HPLC of Formula: 616-14-8. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:616-14-8) here.

A partially hydrophobic carbazole ligand ((Im+)2Cz: 2,2′-(9-ethyl-9 H-carbazole-3,6-diyl)bis(ethyne-2,1-diyl)bis(1,3-dimethyl-1 H-imidazol-3-ium)) adopts two different binding states (binding states I and II) in its interactions with calf-thymus (ct-) DNA. Two distinct binding states were identified by biphasic UV/Vis and CD spectral changes during the titration of DNA into the carbazole ligand. At low concentrations of ct-DNA, (Im+)2Cz binds to nearly every part of ct-DNA (binding state I). By contrast, an increased concentration of ct-DNA results in a switch in the DNA-binding state, so that the ligands are bound per five DNA base pairs. Similarly, a monocationic carbazole ligand (Im+Cz: 2-((6-bromo-9-ethyl-9 H-carbazol-3-yl)ethynyl)-1,3-dimethyl-1 H-imidazol-3-ium) also shows biphasic UV/Vis spectral changes during the titration of ct-DNA into Im+Cz, which suggests two different binding states of the Im+Cz ligand with ct-DNA. The stepwise equilibrium of the ligand-DNA-complex formation is capable of switching the thermal stability of ct-DNA, as well as the enzymic activity of DNase (DNase I). In binding state I, the (Im+)2Cz ligands interact with nearly every base pair in ct-DNA and stabilize the double-helix structure, which results in a larger increase in the melting temperature of the ct-DNA than that observed with binding state II. On the other hand, the (Im+)2Cz ligand significantly reduces the enzymic activity of DNase I in binding state I, although the enzymic activity is recovered once the binding state of the ligand-DNA complex is changed to binding state II. The (Im+)2Cz ligand was also employed as a binder for G-quadruplex DNA. In contrast to the stepwise complex formation between (Im+)2Cz and ct-DNA, (Im+)2Cz shows a monotonous UV/Vis spectral response during the titration of G-quadruplex DNA into (Im+)2Cz, which suggests a single binding state for (Im+)2Cz with G-quadruplex DNA.

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Thiomorpholine – Wikipedia,
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Related Products of 616-14-8. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about On labelling with generator nuclides. Author is Otto, R.; Hecht, P..

Short-lived radioisotopes separated from radionuclide generators are widely used. Possibilities of labeling with the daughter nuclides of the com. available Mo/Tc-, Sn/In-, and Te/I-generators and of the self-made Ba/La-generator in industrial tracer experiments are presented. The transfer of the daughter nuclides from the generator eluates into organic phases and the labeling of oil-phases and solid particles are investigated. The developed simple, quick and efficient methods are suitable for routine application under industrial conditions. Some examples of industrial applications of the generator nuclides are given, too.

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Thiomorpholine – Wikipedia,
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Formula: C5H11I. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about Metal-free C(sp3)-H functionalization of sulfonamides via strain-release rearrangement. Author is Hu, Jiefeng; Yang, Xianyu; Shi, Shasha; Cheng, Bo; Luo, Xiaoling; Lan, Yu; Loh, Teck-Peng.

A metal-free reaction system that enables C-H bond functionalization of aliphatic sulfonamides R(CH2)2N(F)Ts (R = decyl, cyclohexyl, oxan-4-yl, benzyl, etc.) using DABCO as a promoter under mild conditions, affording a series of α,β-unsaturated imines R1CH=C(R)CH=NTs (R1 = Ph, 4-chlorophenyl, 2,3-dihydro-1-benzofuran-5-yl, etc.) in good yields with high selectivities was presented. This protocol tolerates a broad range of functionalities and can serve as a powerful synthetic tool for the late-stage modification of complex compounds More importantly, control experiments and detailed DFT calculations suggest that this process involves [2 + 2] cyclization/ring-cleavage reorganization, which opens up a new platform for the establishment of other related reorganization reactions.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about Two Distinct Thermal Stabilities of DNA and Enzymatic Activities of DNase I in a Multistep Assembly with Carbazole Ligands: Different Binding Characteristics for Duplex and Quadruplex DNA.Name: 1-Iodo-2-methylbutane.

A partially hydrophobic carbazole ligand ((Im+)2Cz: 2,2′-(9-ethyl-9 H-carbazole-3,6-diyl)bis(ethyne-2,1-diyl)bis(1,3-dimethyl-1 H-imidazol-3-ium)) adopts two different binding states (binding states I and II) in its interactions with calf-thymus (ct-) DNA. Two distinct binding states were identified by biphasic UV/Vis and CD spectral changes during the titration of DNA into the carbazole ligand. At low concentrations of ct-DNA, (Im+)2Cz binds to nearly every part of ct-DNA (binding state I). By contrast, an increased concentration of ct-DNA results in a switch in the DNA-binding state, so that the ligands are bound per five DNA base pairs. Similarly, a monocationic carbazole ligand (Im+Cz: 2-((6-bromo-9-ethyl-9 H-carbazol-3-yl)ethynyl)-1,3-dimethyl-1 H-imidazol-3-ium) also shows biphasic UV/Vis spectral changes during the titration of ct-DNA into Im+Cz, which suggests two different binding states of the Im+Cz ligand with ct-DNA. The stepwise equilibrium of the ligand-DNA-complex formation is capable of switching the thermal stability of ct-DNA, as well as the enzymic activity of DNase (DNase I). In binding state I, the (Im+)2Cz ligands interact with nearly every base pair in ct-DNA and stabilize the double-helix structure, which results in a larger increase in the melting temperature of the ct-DNA than that observed with binding state II. On the other hand, the (Im+)2Cz ligand significantly reduces the enzymic activity of DNase I in binding state I, although the enzymic activity is recovered once the binding state of the ligand-DNA complex is changed to binding state II. The (Im+)2Cz ligand was also employed as a binder for G-quadruplex DNA. In contrast to the stepwise complex formation between (Im+)2Cz and ct-DNA, (Im+)2Cz shows a monotonous UV/Vis spectral response during the titration of G-quadruplex DNA into (Im+)2Cz, which suggests a single binding state for (Im+)2Cz with G-quadruplex DNA.

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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem