Heterocyclic Building Blocks-Thiomorpholine

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: 4531-54-8, is researched, Molecular C4H6N4O2, about Solvatochromism of Heteroaromatic Compounds: XIV. 5-Amino-1-methyl-4-nitropyrazole and Its Analogs, the main research direction is solvatochromism heteroaromatic aminomethylnitropyrazole.COA of Formula: C4H6N4O2.

The solvatochromism of H complexes of 5-amino-1-methyl-4-nitropyrazole and 2-nitroaniline derivatives in aprotic protophilic media was described on a quant. level with the aid of Kamlet-Taft empirical parameters. Specific solvation affects only one of the two long-wave bands, that corresponding to an electronic transition involving orbital electron d. transfer from the H-bound N atom. When such transfer does not occur, which is typical of the second transition, specific solvatochromic effect is either weak or absent.

Here is just a brief introduction to this compound(4531-54-8)COA of Formula: C4H6N4O2, more information about the compound(1-Methyl-4-nitro-1H-imidazol-5-amine) is in the article, you can click the link below.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

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.Suwinski, Jerzy; Salwinska, Ewa; Watras, Jan; Widel, Maria researched the compound: 1-Methyl-4-nitro-1H-imidazol-5-amine( cas:4531-54-8 ).Name: 1-Methyl-4-nitro-1H-imidazol-5-amine.They published the article 《Nitroimidazoles. VI. Partition coefficients and tautomerism of simple nitroimidazoles》 about this compound( cas:4531-54-8 ) in Acta Poloniae Pharmaceutica. Keywords: nitroimidazole derivative partition coefficient tautomerism. We’ll tell you more about this compound (cas:4531-54-8).

Octanol-water partition coefficients (P) were determined for 42 simple nitroimidazoles with Me, Cl, Br, MeO, NH2, and NO2 substituents. Correlation between log P and the substituent constants πX of Hansch and fX of Nys-Rekker was derived. For the N-methylated compounds, the average value of πN-CH3 was calculated to be -0.30. Significance of log P measurement in estimating the tautomeric equilibrium in 4(5)-nitroimidazoles is discussed in detail.

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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 《Primary active amyl halides》. Authors are Whitmore, Frank C.; Olewine, J. Harris.The article about the compound:1-Iodo-2-methylbutanecas:616-14-8,SMILESS:CCC(CI)C).Quality Control of 1-Iodo-2-methylbutane. Through the article, more information about this compound (cas:616-14-8) is conveyed.

Primary active AmOH (I) with SOCl2 in C5H5N give 77% of the AmCl, b140 50.5-1°, nD20 1.4125, n420 0.8852, [α]D28.5 1.66°. I and PBr3 at 5-15° give 29% of the AmBr, b140 69.6°, nD20 1.4450, d420 1.2239, [α]D25 3.75°. I and BzCl give 80% of the benzoate, b20 140.2°, nD20 1.4948, d420 0.9913, [α]D28 6.09°; with MeMgI this yields 17.5% of the AmI, b20 47.1°, nD20 1.4969, d42 1.5227, [α]D28 4.84°. Data are given for the constants of I after regeneration from the chloride or bromide through the Grignard reagents; the total racemization in the steps I → AmCl or AmBr → Grignard reagent → I is not over 10%.

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Reference:
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 《The infrared spectrum of the formate ion》. Authors are Schutte, C. J. H.; Buijs, K..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.

The infrared spectra of anhydrous Ca(HCO2)2, Sr(HCO2)2, Ba(HCO2)2, and Pb(HCO2)2 show clearly the doubling of the fundamental bands of the formate ion owing to the existence of non-equivalent ions in the lattice. A new tetragonal phase of Ca(HCO2)2 precipitate when an organic solvent is added to an aqueous solution of Ca(HCO2)2. The new β phase belongs to space group D44-P412121, α = 9.46 A., c = 6.77 A., with 4 mols. per unit cell. The absorption bands for the β phase are single, in accordance with the crystallographic symmetry.

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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 《Imidazole series. XX. Aminonitroimidazoles and diaminoimidazoles》. Authors are Kochergin, P. M.; Verenikina, S. G.; Bushueva, K. S..The article about the compound:1-Methyl-4-nitro-1H-imidazol-5-aminecas:4531-54-8,SMILESS:NC1=C([N+]([O-])=O)N=CN1C).Name: 1-Methyl-4-nitro-1H-imidazol-5-amine. Through the article, more information about this compound (cas:4531-54-8) is conveyed.

cf. preceding abstract The aminonitroimidazoles I-XII were prepared by heating the corresponding nitrochloroimidazoles with a 8-15% alc. NH3 solution at 120-50° for 5-10 hrs. The products I, VII, and XII were obtained in the presence of CuSO4 catalyst (formula, R, m.p., and % yield 131-1.5°, 15-20; VII, iso-Bu, 108-10°, 15; VIII, H, 222.5-23°, 30.5; IX, Me, 198-9°, 39.5; X, Et, 160-1°, 58; XI, Pr, 130-1°, 32; XII, iso-Bu, 129-30°, 21.5. The hydrogenation of II in Ac2O in the presence of Raney Ni gave 1-ethyl-2-methyl-4,5-diaminoimidazole diacetate at 30-45° and initial H pressure of 10 atm. and tetraacetate at 50-80° and 100 atm.

Here is just a brief introduction to this compound(4531-54-8)Name: 1-Methyl-4-nitro-1H-imidazol-5-amine, more information about the compound(1-Methyl-4-nitro-1H-imidazol-5-amine) is in the article, you can click the link below.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Recommanded Product: 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 Phenotype identification of tumor-associated macrophages in mice bearing lung carcinoma.

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. Here is just a brief introduction to this compound(616-14-8)Recommanded Product: 1-Iodo-2-methylbutane, more information about the compound(1-Iodo-2-methylbutane) is in the article, you can click the link below.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Application of 616-14-8. 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 An extension of the linear relationship between molecular rotation and bond refraction. Author is Poh, Bo-Long.

For the empirical equations [M]D = mΣ RD + I; [M]D is the mol. rotation, ΣRD is the sum of bond refractions, and m and I are constants for a given series of compounds, a different treatment of the term ΣRD extends the usefulness of the equation to all types of substituents, not just monovalent and linear substituents.

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Reference:
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 《Asymmetric reductions. VI. The action of the Grignard reagent from (+)-1-chloro-2-methylbutane on a series of alkyl tert-butyl ketones》. Authors are Foley, William M.; Welch, Frank J.; Combe, Edward M. La; Mosher, Harry S..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. 51, 1828h. Title reactions were carried out with six ketones, and the % asymmetric reduction, i, was determined by comparing the observed rotation of each resulting carbinol with the maximum rotation of pure isomers obtained by resolution. The absolute configurations of the prepared carbinols were determined and R, [α]25D (neat), and i were as follows: Me, 0.63°, 13.4; iso-Pr, -0.38°, 4.6; Et, -2.94°, 10.7; Pr, -3.87°, 11.3; Bu, -3.78°, 11.0; and iso-Bu, -2.56°, 5.9. The results agreed with a reaction mechanism of Grignard reduction involving an intermediate cyclic six-membered transition state in which stereospecificity was controlled by steric interaction of the alkyl and tert-butyl groups of the ketones and the Me and Et groups of the Grignard reagent. The alkyl tert-butyl ketones were prepared by coupling the appropriate acid chloride, RCOCl, with the Grignard reagent from freshly distilled tert-BuCl in the presence of Cu2Cl2 to yield the following products (R, % yield based on Grignard reagent, b.p., and n25D given): Me, 33, 105.2°, 1.3974; Et, 89, 125.0-5.8°, 1.4049-51; Pr, 63, 145.0-5.8°, 1.4109-11; iso-Pr, 36, 135.2-6.7°, 1.4049-68; Bu, 69, 167.0-9.0°, 1.4149-59; and iso-Bu, 40, 155.5-7.0°, 1.4135-42. Only the Me and Pr tert-butylcarbinols were resolved in earlier work, and the resolution of the remaining four, by classical methods (Ingersoll, C.A. 38, 29257), is reported here. Racemic tert-BuCHEtOH (I), b. 136°, n20D 1.4235, was converted to the dl-acid phthalate, m. 88.0-8.3°. By procedures involving brucine and recrystallizations the (-)-acid phthalate (II) was obtained, m. 91.0-1.5°, [α]27D -3.75° (c 20.5, CHCl3), the rotation in CHCl3 being concentration dependent, 2.2° (c 1.5). (+)-I was regenerated from II, n20D 1.4230, α23D 27.40° (neat, l 1); acetate from (+)-I b38 74°, α24D 12.16° (neat, l 0.5), d23 0.856; benzoate from (-)-I b0.8 20°, α25D -3.19° (neat, l 0.5), n20D 1.4912, d23 0.957. Racemic tert-BuCH(OH)Pr-iso (III), b. 150.9-1.1°, n20D 1.4290-9, gave the dl-acid phthalate, m. 114.5-16.0°. The brucine salt was prepared and a less soluble form obtained, m. 173-5°, [α]28D -23°, which on hydrolysis gave an acid phthalate (IV), m. 100.5-3.0°, [α]25D 0.00°, which was hydrolyzed to (-)-III, α28D -7.22° (neat, l 1). Hydrolysis of the more soluble form of the brucine salt, [α]28D -16.1°, gave an acid phthalate (V), [α]28D 0.00°, which on hydrolysis gave (+)-III, α28D 7.22° (neat, l 1). The strychnine salt of IV was also prepared, [α]28D -25.7°, the acid phthalate regenerated, and converted to (-)-III, α28D -8.94° (neat, l 1), n20D 1.4300. The cinchonine salt of V was prepared, m. 144-7° (decomposition), [α]28D 106°, from which an acid phthalate was regenerated, m. 105.5-7.0°, and hydrolyzed to (+)-III, α28D 9.06° (neat, l 1). These latter values of -8.94° for (-)-III and 9.06° for (+)-III were considered best values. Also prepared were acetate of (+)-III, b155 130°, n21D 1.4166, α28D -1.44° (neat, l 1), and benzoate of (+)-III, b32 195°, n19D 1.4969, α25D -0.16° (neat, l 1). Racemic tert-BuCH(OH)Bu-iso (VI), b150 115-16°, n25D 1.4309, m. 17°, gave acid phthalate (VII), m. 83.5-4.5°. Strychnine was used in the resolution and eventually (+)-VII was obtained, m. 75.6-7.5°, [α]23D 8.7° (c 1.5, CHCl3), hydrolyzed to (+)-VI, m. 40-1°, α26D 57.5° (c 20.4, MeOH), and α23D 54.5° (neat, by extrapolation of rotation-concentration curve); acetate of (+)-VI b17 73°, α22D 15.15° (neat, l 0.5), n20D 1.4176, d22 0.852; benzoate of (+)-VI b0.6 88°, α25D 8.24° (neat, l 0.5), n20D 1.4870, d25 0.955. Racemic tert-BuCHBuOH (VIII), n20D 1.4320, was converted to acid phthalate (IX), m. 100.5-2.0°, and then to the strychnine salt. The regenerated (+)-IX was a glass, α23D 4.5° (c 2.8, CHCl3), which was saponified to (+)-VIII, n20D 1.4314, α24D 17.10° (neat, l 0.5). The (-)-phthalate from the more soluble fractions of strychnine salt gave (-)-VIII, α24D -16.39° (neat, l 0.5). The dl-tetrachlorophthalate of VIII was also prepared, m. 126-8°, converted to the strychnine salt, and the less soluble form, [α]25D -12°, hydrolyzed to (-)-acid tetrachlorophthalate, α22D -9.69°, which was saponified to (+)-VIII, α22D 13.70° (neat, l 0.5); 3,5-dinitrobenzoate (X) of (+)-VIII m. 107.5° (MeOH), α25D 10.0° (c 2.4, CHCl3); 3,5-dinitrobcnzoate of dl-VIII, m. 84.0-4.5°. X was saponified to (+)-VIII, b23 76°, α25D 17.12° (neat, l 0.5), n20D 1.4310, d26 0.823. The value for pure (+)-VIII was taken as α25D 34.24° (neat, l 1). From (-)-VIII, α25D -32.8° (neat, l 1), was prepared: acetate, b20 87°, α26D -11.25° (neat, l 0.5), n20D 1.4191, d26 0.851; benzoate, b0.5 98°, α25D -7.29° (neat, l 0.5), n20D 1.4887, d25 0.936; p-nitrobenzoate, b0.5 144-5°, α29D -12.50°, n25D 1.5070. Some work was done with the Grignard reagents of the following prepared compounds: (+)-1-bromo-2-methylbutane, b100 60.8°, n20D 1.4453, α24D 4.22° (neat, l 1), 84% optical purity, a 2nd preparation b100 57-8°, α26.6D 4.66°, 93% optical purity; and (+)-1-iodo-2-methytbutane, n20D 1.4955-69, α21D 8.65° (neat, l 1), 98.5% optical purity, 2nd preparation b53 70°, n20D 1.4969-72, α25D 16.8° (neat, l 2), optical purity 96.5%.

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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Name: 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 Application of multipurpose dimethyl formamide-like task specific ionic liquid as a recyclable reagent for direct iodination of alcohols.

A direct and an efficient conversion of a wide range of primary, secondary and tertiary alcs. to the corresponding iodides was obtained under ionic liquid conditions. The method involves preparation of ionic liquid-based iminium chloride intermediate from DMF-like ionic liquid then stirring it with alc. in present of sodium iodide. The higher yields of alkyl iodides were obtained within min. time with simplest operational procedure and DMF-like ionic liquids could be recycled.

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Thiomorpholine – Wikipedia,
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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-Methyl-4-nitro-1H-imidazol-5-amine, is researched, Molecular C4H6N4O2, CAS is 4531-54-8, about Solvatochromism of Heteroaromatic Compounds: XIV. 5-Amino-1-methyl-4-nitropyrazole and Its Analogs.Product Details of 4531-54-8.

The solvatochromism of H complexes of 5-amino-1-methyl-4-nitropyrazole and 2-nitroaniline derivatives in aprotic protophilic media was described on a quant. level with the aid of Kamlet-Taft empirical parameters. Specific solvation affects only one of the two long-wave bands, that corresponding to an electronic transition involving orbital electron d. transfer from the H-bound N atom. When such transfer does not occur, which is typical of the second transition, specific solvatochromic effect is either weak or absent.

Here is just a brief introduction to this compound(4531-54-8)Product Details of 4531-54-8, more information about the compound(1-Methyl-4-nitro-1H-imidazol-5-amine) is in the article, you can click the link below.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem