Month: April 2022

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 Pheromone synthesis. Part 259: Synthesis of seven methyl-branched hydrocarbons as the pheromone candidates for female Korean apricot wasp, Eurytoma maslovskii. Author is Mori, Kenji; Yang, Chang Yeol.

Seven new methyl-branched hydrocarbons were synthesized, which were the pheromone candidates of the female Korean apricot wasp (Eurytoma maslovskii). They are (Z)-15-methyl-7-nonacosene (I), (Z)-17-methyl-7-hentriacontene (II), 3,7-dimethylheptacosane (III), 8,12-dimethyltriacontane (IV), 8,18-dimethyltriacontane (V), 3,7,11-trimethylnonacosane (VI), and 3,7,17-trimethylnonacosane (VII). All of them were synthesized as stereoisomeric mixtures, employing short and simple routes. Hydrocarbon VII was synthesized via 4,8-dimethyldecanal (tribolure), the red flour beetle pheromone. The hydrocarbons I, II, III and VI were identified by GC-MS anal. as the components (with unknown stereochem.) of the female-specific secretion of E. maslovskii.

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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Reference of 1-Iodo-2-methylbutane. 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 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,
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.Seebach, D.; Steinmueller, D. researched the compound: 1-Iodo-2-methylbutane( cas:616-14-8 ).Application In Synthesis of 1-Iodo-2-methylbutane.They published the article 《Preparation of (S)-2-methylbutyl and (S)-sec-butyl ketones from optically active 2-methyl-1-butanol by the dithiane method》 about this compound( cas:616-14-8 ) in Angewandte Chemie, International Edition in English. Keywords: ketone; aldehyde; dithianes. We’ll tell you more about this compound (cas:616-14-8).

Optically active aldehydes and ketones EtMeCHCRO (where R = H, Me, Ph, Me3Si, C5H11, or 1-cyclohexenyl) were prepared by treating EtMeCHCHO, obtained from EtMeCHCH2OH, with CH2(CH2SH)2 to give 2-(1-methylpropyl)-1,3-dithiane, which was then alkylated and hydrolyzed. The loss of optical activity was <20% for the reaction sequence. From this literature《Preparation of (S)-2-methylbutyl and (S)-sec-butyl ketones from optically active 2-methyl-1-butanol by the dithiane method》,we know some information about this compound(616-14-8)Application In Synthesis of 1-Iodo-2-methylbutane, but this is not all information, there are many literatures related to this compound(616-14-8).

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Thiomorpholine – Wikipedia,
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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Nitroimidazoles. VI. Partition coefficients and tautomerism of simple nitroimidazoles, published in 1985, which mentions a compound: 4531-54-8, Name is 1-Methyl-4-nitro-1H-imidazol-5-amine, Molecular C4H6N4O2, Product Details of 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,
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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 4531-54-8, is researched, SMILESS is NC1=C([N+]([O-])=O)N=CN1C, Molecular C4H6N4O2Journal, Article, Research Support, Non-U.S. Gov’t, Analytical Methods called Development of a HPLC-DAD stability-indicating method and compatibility study of azathioprine and folic acid as a prerequisite for a monolayer fixed-dose combination, Author is Brusac, Edvin; Jelicic, Mario-Livio; Amidzic Klaric, Daniela; Nigovic, Biljana; Keser, Sabina; Mornar, Ana, the main research direction is HPLC stability compatibility azathioprine folic acid monolayer dose combination.Application In Synthesis of 1-Methyl-4-nitro-1H-imidazol-5-amine.

Adherence in chronic diseases is a major problem which can be combated by prescribing fixed-dose combinations in the therapy of the disease. Thus, a combination of azathioprine and folic acid in the treatment of inflammatory bowel disease is highly required, but prior to formulation development, chem. compatibility of the two drugs needs to be investigated. In this work, differential scanning calorimetry, isothermal stress testing, in vitro dissolution and forced degradation studies were utilized to investigate compatibility. Moreover, a stability-indicating HPLC-DAD method for the determination of parent drugs and five of their impurities was developed, validated and applied to the inhouse sample. Compatibility testing revealed no noteworthy interactions of the two drug substances. Furthermore, forced degradation showed no substantial differences between the degradation profiles of each active pharmaceutical ingredient, their mixture and the inhouse sample, further reinforcing the claim of compatibility. Lastly, the inhouse sample was analyzed: it was shown to conform to the requirements of relevant regulatory documents for all the investigated analytes, demonstrating the method’s viability for use in formulation and process development. Our results give way to the possibility of realization of said fixed-dose combination.

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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 Metal-free C(sp3)-H functionalization of sulfonamides via strain-release rearrangement.

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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Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, International Journal of Pharmaceutical Sciences and Research called Development and validation of stability – indicating RP-HPLC chromatographic method by forced degradation studies for azathioprine by related substances, Author is Hiralben, S. Mehta; Shinghvi, Indrajeet; Raj, Hasumati A., which mentions a compound: 4531-54-8, SMILESS is NC1=C([N+]([O-])=O)N=CN1C, Molecular C4H6N4O2, Synthetic Route of C4H6N4O2.

Simple, rapid and reproducible stability-indicating methods were established for quant. determination of azathioprine using a, phenomenex 250 mm × 4.9 mm C18, 5 μm, inertsil and UV detection at 240 nm. The isocratic elution was used to quantify the analyte and the mobile phase was acetate buffer: acetonitrile: methanol (30: 35: 35) was pumped at 1.0 mL/min. The method was linear between 10-300 μg/mL, statistically validated for its linearity, precision and accuracy. In this study, degradation behavior of azathioprine was studied by subjecting the drug to various ICH stress conditions. The intra and inter day variation was found to be less than 1% showing high precision of the assay method. It was found that the excipients in the com. tablet did not interfere with the method. Developed method can routinely use for the estimation of azathioprine related compounds from the dosage form and also for stability sample.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Castello, Gianrico published the article 《Gas chromatographic identification of alkyl radicals formed in plasma radiofrequency discharges by using iodine as a scavenger》. Keywords: alkyl radical identification gas chromatog; iodide alkyl gas chromatog retention; solution heat alkyl iodide.They researched the compound: 1-Iodo-2-methylbutane( cas:616-14-8 ).Application In Synthesis of 1-Iodo-2-methylbutane. 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.

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,
Thiomorpholine | C4H9NS – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Formation of 4(5)-aminoglyoxalines. I》. Authors are Balaban, Isidore E..The article about the compound:1-Methyl-4-nitro-1H-imidazol-5-aminecas:4531-54-8,SMILESS:NC1=C([N+]([O-])=O)N=CN1C).Safety of 1-Methyl-4-nitro-1H-imidazol-5-amine. Through the article, more information about this compound (cas:4531-54-8) is conveyed.

The only evidence at present that 4(5)-aminoglyoxalines are true aromatic amines is the formation, after diazotization, of colored soln with aqueous β-C10H7ONa. Reduction of 4(5)-nitro-2-methyl- and 4(5)-nitroglyoxalines with Fe and H2O, FeSO4 and NaOH, Na2S or activated Al gave no basic material. Et glyoxaline-4(5)-carboxylate and N2H4.H2O, heated on the H2O bath for 30 min., give nearly quant. glyoxaline-4(5)-carboxyhydrazide, crystallizing with 1H2O, m. 213°, reduces NH4OH-AgNO3 slowly but not Fehling solution; picrate, yellow, m. 223° (decomposition), crystallizes from 85 parts boiling H2O. With HNO3 there results glyoxaline-4(5)-carboxyazide (I), decomposes explosively at 137°; heating with H2O does not give the urea; the green solution gives an amorphous picrate, chars 230°. Boiling I with absolute EtOH for 4 hrs. gives 42.2% of 4(5)-carbethoxyaminoglyoxaline, m. 180°; picrate, golden, decomposes 210°, crystallizes from 60 parts boiling H2O; nitrate (II), decomposes 143°. I and MeOH give 50% of the corresponding carbomethoxy derivative, m. 175°; picrate, decomposes 243°. Neither derivative could be hydrolyzed by acid or alkali. II and concentrated H2SO4 give 58% of 5(4)-nitro-4(5)-carbethoxyaminoglyoxaline, m. 234° (decomposition); this could not be converted by 10% Na2CO3 into the corresponding amine. 5-Chloro-4-nitro-1-methylglyoxaline and EtOH-NH3, heated 4 hrs. at 140°, give 63.7% of the 5-NH2 derivative, yellow, m. 303° (decomposition), crystallizes from 170 parts boiling H2O; it does not form an Ac derivative, a benzylidene derivative or a picrate; after treatment with HNO2, alk. C10H7ONa gives a greenish blue color and alk. m-C6H4(OH)2 a violet color. With 16% HCl, HNO2 is liberated and α-methylamino-α-hydroxyacetamide, pale brown, m. 140°, is formed.

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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.Computed Properties of C9H13NO2. The article 《Total Synthesis of (-)-Cylindrocyclophane F: A Yardstick for Probing New Catalytic C-C Bond-Forming Methodologies》 in relation to this compound, is published in Chemistry – A European Journal. Let’s take a look at the latest research on this compound (cas:616-14-8).

A short and efficient total synthesis of the C2-sym. (-)-cylindrocyclophane F is presented, using a cross olefin metathesis dimerization strategy for construction of the [7,7]-paracyclophane macrocycle. The synthesis of the dimerization building block includes a Pd-catalyzed sp3-sp2 Negishi cross coupling of a sterically hindered Zn-reagent with an aromatic triflate, an enantiospecific Zn-catalyzed sp3-sp3 cross coupling of an α-hydroxy ester triflate with a Grignard reagent and the application of an enantioselective Rh-catalyzed C-allylation of an electron rich arene.

There is still a lot of research devoted to this compound(SMILES：CCC(CI)C)Formula: C5H11I, and with the development of science, more effects of this compound(616-14-8) can be discovered.

Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem