Category: Thiomorpholine

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Interaction of hydroxy compounds and phosphorus and thionyl halides in the absence and in the presence of tertiary bases. VI》. Authors are Berlak, Marianne C.; Gerrard, Wm..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. 41, 93d. The following yields (in %) of alkyl iodide were obtained from the resp. alc. and 0.33 mol. PI3 in CS2 at 15-20° in 24 h. (other exptl. conditions indicated): PrOH 40; iso-PrOH 20 (72 h. 21; 1 mol. 18); BuOH 43 (72 h. 61, 2.5 h. at b.p. 48; 1 mol. for 24 or 72 h. 56); sec-BuOH 60 (72 h. 58; 1 mol. 61); tert-BuOH 20 (also 72 h.; 1 mol. 17); sec-BuCH2OH 48 (68 h. 44, 1 mol. 45); Pr2CHOH 74 (1 mol. 80); C8H17OH 42 (1 mol. 56); C6H13CH(Me)OH (I) 36 (0.66 mol. for 24 or 72 h. 66, 1 mol. 75). (+)-I (6.5 g.) and 3.95 g. C5H5N in 50 cc. CS2 at -10°, treated with 6.9 g. PI3, give 9.3 g. C5H5N.HI; further addition of 13.8 g. PI3 gives 7.78 g. C6H13CHIMe, αD18 -56.8% BuOH and C8H17OH show a similar behavior. (-)-Dimethylhexylcarbinyl H phosphite (4.6 g., αD22 -12.6°) at -10°, treated (1 h.) with HI and kept 18 h. at 15° gives 5.93 g. (+)-C6H13CHIMe, αD20 45.8°. (BuO)2PHO (6.5 g.), treated 50 min. at -10° with HI and kept 30 min. at -10°, gives 2.65 g. BuI; if the reaction is carried out without cooling (temperature rise from 19 to 23°), there results 5.3 g. BuI. (RO)2HPO react much more readily with HI than with HCl or HBr. The mechanism of the reaction is discussed.

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Application of 4531-54-8. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1-Methyl-4-nitro-1H-imidazol-5-amine, is researched, Molecular C4H6N4O2, CAS is 4531-54-8, about Nucleophilic substitution reactions of 1-methyl-4,5-dinitroimidazole with aqueous ammonia or sodium azide.

In this work, 5-amino-1-methyl-4-nitroimidazole was synthesized by amination reaction of 1-methyl-4,5-dinitroimidazole with aqueous ammonia in 95% yield. Meanwhile, one of its isomers, 4-amino-1-methyl-5-nitroimidazole as byproduct was obtained from the filtrate. Furthermore, nucleophilic substitution reaction of 1-methyl-4,5-dinitroimidazole with sodium azide gave 5-azido-1-methyl-4-nitroimidazole in 98% yield. The three compounds were characterized by IR, 1H and 13C NMR spectra, m.ps., and elemental anal. The structure of 4-amino-1-methyl-5-nitroimidazole was further confirmed by single crystal X-ray diffraction. These reactions indicate that the nitro group at position 5 of 1-methyl-4,5-dinitroimidazole is quite unstable, as well as partial substitution of nitro group at position 4 also occurred in aqueous ammonia. Only one nitro group of the two is involved in nucleophilic substitution reaction in each case.

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HPLC of Formula: 4531-54-8. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1-Methyl-4-nitro-1H-imidazol-5-amine, is researched, Molecular C4H6N4O2, CAS is 4531-54-8, about A catalyst and additive-free three-component reaction of highly electrophilic azides with cyclic ketones and cycloaliphatic amines. Synthesis of novel N-heteroaryl amidines. Author is Efimov, Ilya; Beliaev, Nikolai; Beryozkina, Tetyana; Slepukhin, Pavel; Bakulev, Vasiliy.

Highly electrophilic 5-azido-1-methyl-4-nitro-1H-imidazole and sulfonyl azides were demonstrated to react with alicyclic amines and cyclic ketones in the absence of any catalyst or additive to afford novel N-(4-nitroimidazol-5-yl)- or N-sulfonylamidines resp. Based on single crystal X-ray anal., a revision of the previously reported data of Gao and co-workers on the direction of the reaction of sulfonyl azides with endocyclic enamines was made. The reaction of 2,6-diazidopyridine with an enamine, 4-(cyclohex-1-en-1-yl)morpholine, proceeded with cyclization of the azide moiety onto the pyridine C=N bond to form an amidine bearing the tetrazolo[1,5-a]pyridine fragment.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 616-14-8, is researched, Molecular C5H11I, about Phenotype identification of tumor-associated macrophages in mice bearing lung carcinoma, the main research direction is phenotype macrophage lung carcinoma.COA of Formula: C5H11I.

Objective To identify the phenotype of tumor-associated macrophages (TAM) in mice bearing Lewis lung carcinoma (LLC). Methods LLC cells were planted in the dorsal necks of C57BL/6 mice s.c. The levels of Th1/Th2 cytokines in the transplantation tumors were tested by ELISA. Co-expression of CD68/macrophage mannose receptor (MMR) and CD68/inducible nitric oxide synthase (iNOS) of TAM was detected by double-labeled immunofluorescence staining. Phagocytic capacity of TAM was assessed by yeast phagocytosis assay. Results In the mice LLC transplantation tumors, Th2 cytokine shift was found in the microenvironment. The concentrations of IFN-γ and IL-12 were (2.19 ±> 0.34) ng/mL and (1635.92 ±> 754.86) ng/mL in transplantation tumors, lower than (5.49 ±> 1.04) ng/mL and (6161.48 ±>498.49) ng/mL in normal lung tissues (P <0.05). IL-4 and IL-10 were (29.31 ±> 14.47) ng/mL and (21.54 ±> 10.72) ng/mL in transplantation tumors, higher than (16.43 ±>6.31) ng/mL and (10.71 ±>2.02) ng/mL in normal lung tissues (P <0.05). The percentage of CD68/MMR(+) TAM in all the TAM was 69.7%-83.2%, while CD68/iNOS (+) was 16.8%-30.3%. The phagocytic rate and index of the transplantation tumors were (5.42 ±> 1.74)% and 0.08 ±>0.02, much lower than (23.63 ±> 5.81)% and 0.39 ±>0.14 in normal spleen tissues with statistical significance (P <0.01). Conclusion TAM in mice bearing LLC might be polarized to the alternative activation phenotype. I hope my short article helps more people learn about this compound(1-Iodo-2-methylbutane)COA of Formula: C5H11I. Apart from the compound(616-14-8), you can read my other articles to know other related compounds.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1-Iodo-2-methylbutane(SMILESS: CCC(CI)C,cas:616-14-8) is researched.Application of 17739-45-6. The article 《SPME-GC-MS analysis of volatile components in fruits of the frozen Ficus tikoua Bur.》 in relation to this compound, is published in Shipin Yanjiu Yu Kaifa. Let’s take a look at the latest research on this compound (cas:616-14-8).

This thesis developed an SPME-GC-MS method for the aroma components in Ficus tikoua Bur. fruit. At the same time, the solid-phase micro extraction conditions were optimized: extraction temperature was 50°C, the extraction time was 40 min, added 8 g of sodium chloride electrolyte solid extraction Frozen Ficus tikoua Bur. fruit was detected out of 152 kinds of volatile substances, substances detected in 99.03%of the total. The main aroma components were esters, accounting for 33.06%; alcs., accounting for 13.14%; alkanes, accounting for 13.18%; there ketones, aldehydes, acids and other substances. Higher levels of 10 kinds of aroma components were guaiacol (14.71%), cyclobutane carboxylic acid dodecyl ester (13.54%), n-tridecane (6.05%), 2-tridecanone (4.72%), cyclohexasiloxane (4.44%), cyclobutane carboxylic acid decyl ester (4.18%), Me nonyl ketone (3.62%), acetic acid (2.98%), cyclopentanecarboxylic acid thirteen ester (2.48%), 2-tetradecanol (2.31%) and so on.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Safety of 1-Iodo-2-methylbutane. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about Gas chromatographic identification of alkyl radicals formed in plasma radiofrequency discharges by using iodine as a scavenger.

Alkyl radicals formed in low-pressure radiofrequency plasmas were identified by gas chromatog. using I as a scavenger compound Iodine vapors, injected into the glowing plasma discharge, reacted with active radicals in the gas phase, yielding various saturated alkyl iodides, that were trapped by freezing in an organic solvent and analyzed on Apiezon L and Carbowax 20M columns. Analyses carried out at different temperatures permitted the retention times and indexes to be measured and the relative molar heats of solution to be calculated

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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 《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).Reference of 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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Reference of (R)-(9H-Fluoren-9-yl)methyl (1-chloro-4-methyl-1-oxopentan-2-yl)carbamate. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: (R)-(9H-Fluoren-9-yl)methyl (1-chloro-4-methyl-1-oxopentan-2-yl)carbamate, is researched, Molecular C21H22ClNO3, CAS is 198544-60-4, about Total Solid Phase Syntheses of the Quinazoline Alkaloids: Verrucines A and B and Anacine. Author is Wang, Haishan; Sim, Mui Mui.

The first total syntheses of verrucines A and B and anacine (revised structure) were accomplished on Sasrin resin. This work confirmed the structure of verrucine A and unambiguously showed verrucine B to be a derivative of D-phenylalanine and L-glutamine. The study also proved that anacine and its epimer are quinazoline alkaloids, not benzodiazepines as originally proposed. 1-Hydroxyverrucine B, derived from air oxidization of verrucine B, was also isolated and characterized.

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Trabocchi, Andrea; Stefanini, Irene; Morvillo, Manfredi; Ciofi, Leonardo; Cavalieri, Duccio; Guarna, Antonio published an article about the compound: (R)-(9H-Fluoren-9-yl)methyl (1-chloro-4-methyl-1-oxopentan-2-yl)carbamate( cas:198544-60-4,SMILESS:O=C(OCC1C2=C(C3=C1C=CC=C3)C=CC=C2)N[C@H](CC(C)C)C(Cl)=O ).Computed Properties of C21H22ClNO3. 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:198544-60-4) through the article.

A chem. genetics approach has been applied in the screening of yeast deletants strains with a pool of morpholine-derived compounds in order to identify candidate small mols. able to produce phenotypic effects on yeast cells. The anal. of the effects of structurally diverse mols. towards cell growth rate in both exponential and stationary phases provides a tool to select candidate compounds for subsequent assays to identify new chem. entities as chem. probes for drug discovery.

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Thiomorpholine – Wikipedia,
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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-Iodo-2-methylbutane( cas:616-14-8 ) is researched.Name: 1-Iodo-2-methylbutane.Ling, Peng-Xiang; Fang, Sheng-Long; Yin, Xue-Song; Chen, Kai; Sun, Bo-Zheng; Shi, Bing-Feng published the article 《Palladium-Catalyzed Arylation of Unactivated γ-Methylene C(sp3)-H and δ-C-H Bonds with an Oxazoline-Carboxylate Auxiliary》 about this compound( cas:616-14-8 ) in Chemistry – A European Journal. Keywords: aryl substituted alkyl amine derivative preparation; oxazoline carboxamide preparation iodoarene arylation palladium catalyst; CH activation; arylation; directing groups; oxazolines; palladium. Let’s learn more about this compound (cas:616-14-8).

A palladium-catalyzed arylation of unactivated γ-methylene C(sp3)-H and remote δ-C-H bonds by using an oxazoline-carboxylate directing group has been developed. Arylation occurs with a broad substrate scope and high tolerance of functional groups (i.e., halogen, nitro, cyano, ether, trifluoromethyl, amine, and ester). The oxazoline-type auxiliary can be removed under acidic conditions.

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Thiomorpholine – Wikipedia,
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