Tag: M.W:100-200

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, Iranian Journal of Catalysis called Application of multipurpose dimethyl formamide-like task specific ionic liquid as a recyclable reagent for direct iodination of alcohols, Author is Hullio, Ahmed Ali; Mastoi, G. M., which mentions a compound: 616-14-8, SMILESS is CCC(CI)C, Molecular C5H11I, Safety of 1-Iodo-2-methylbutane.

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,
Thiomorpholine | C4H9NS – PubChem

Product Details of 616-14-8. 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-Iodo-2-methylbutane, is researched, Molecular C5H11I, CAS is 616-14-8, about Aromatase inhibitors. Synthesis and evaluation of mammary tumor inhibiting activity of 3-alkylated 3-(4-aminophenyl)piperidine-2,6-diones. Author is Hartmann, Rolf W.; Batzl, Christine.

Piperidinediones I (R = H, Me, Et, Pr, CHMe2, CH2CHMe2, CHMeEt, pentyl, isopentyl, CH2CHMeEt, sec-pentyl, hexyl, heptyl) were prepared by alkylating PhCH2CN, addition reaction of PhCHRCN with CH2:CHCN, hydrolysis and ring closure of NCCRPhCH2CH2CN, nitration, and reduction of the nitro group. In vitro I showed a stronger inhibition of human placental aromatase than aminoglutethimide (II). The most active derivative, I (R = isopentyl), showed a 93-fold stronger inhibition than II. I, except I (R = CHMe2, CH2CHMe2, CHMeEt) exhibited equal or lower inhibition of bovine adrenal desmolase than II. Many I showed a stronger inhibition of the plasma estradiol concentration of pregnant mare serum gonadotropin-primed rats than II. They inhibited the testosterone-stimulated tumor growth of ovariectomized 9,10-dimethyl-1,2-benzanthracene tumor-bearing rats more strongly than II. Being stronger and more selective inhibitors of the estrogen biosynthesis than II, some of the newly developed derivatives of II might be better candidates for the treatment of hormone-dependent human breast cancer.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

Name: 1-Iodo-2-methylbutane. 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 Identification of the aggregation pheromone of flour beetles Tribolium castaneum and T. confusum (Coleoptera: Tenebrionidae). Author is Suzuki, Takahisa.

The aggregation pheromone produced by the male red flour beetle, T. castaneum, and confused flour beetle, T. confusum, was identified as 4,8-dimethyldecan-1-al by gas-liquid chromatog., gas chromatog.-mass spectrometry, 1H NMR spectra, and synthesis of the compound The synthetic pheromone was less attractive compared with the natural pheromone, because the synthetic sample was composed of 4 optical isomers.

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Thiomorpholine – Wikipedia,
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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.SDS of cas: 1968-05-4. The article 《Kinetics, products and mechanism of O(3P) atom reactions with alkyl iodides》 in relation to this compound, is published in NATO Science Series, IV: Earth and Environmental Sciences. Let’s take a look at the latest research on this compound (cas:616-14-8).

Alkyl halides are an important source of halogens in the atm. In the case of alkyl iodides, relative kinetic studies of their OH reactions in photoreactors are complicated by fast reactions with the O(3P) atoms generated by the photochem. OH radical sources. In the present study, the relative kinetic technique was applied in large and small photoreactors to measure rate coefficients for the reaction of O(3P) atoms with a series of alkyl iodides at room temperature and atm. pressure. The products formed in N2 were also investigated. Alkenes and HOI are the major products of the reactions and the alkene was quantified for the majority of the alkyl iodides studied.

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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. 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, the main research direction is alkyl radical identification gas chromatog; iodide alkyl gas chromatog retention; solution heat alkyl iodide.Reference of 1-Iodo-2-methylbutane.

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 《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).Related Products of 616-14-8. 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,
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Recommanded Product: 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 Secondary to normal alkyl group rearrangements in octahedral iridium(III) complexes. 1. Monoalkyl derivatives. Author is Bennett, Martin A.; Crisp, Geoffrey T..

sec-Alkyliridium(III) complexes IrYIR(CO)L2 (R = sec-alkyl; Y = Cl, I; L = PMe3, PMe2Ph), formed by oxidative addition of sec-alkyl iodides to IrY(CO)L2, rearrange cleanly by a first-order process to the n-alkyl isomers on dissolution in CH2Cl2 containing protic solvents. The order of efficacy of these solvents in promoting alkyl group rearrangement is CF3CO2H >> CH3OH >> C2H5OH > CH3CO2H ∼ PrOH > (CH3)2CHOH, while in the more strongly coordinating medium of THF the order is H2O >> CH3OH. These orders correlate with the anion-solvating ability of the solvents and, together with the observed retardation by added iodide ion, suggest that the rate-determining step in the rearrangement is dissociation of iodide ion trans to the sec-alkyl group. Rapid, reversible β-hydride elimination in the resulting cation and stereospecific return of iodide ion trans to the resulting n-alkyl group complete the process. The rearrangement is promoted by increasing bulk, both of the alkyl group, up to a certain limit, and of the tertiary phosphine (PMe2Ph > PMe3). Treatment of IrClI{CH(CH3)2}(CO)(PMe2Ph)2 with AgBF4 in MeCN induces immediate alkyl group rearrangement to give the n-propyliridium(III) salt [IrClPr(CO)(NCMe)(PMe2Ph)2]BF4. Studies of analogous CD2CH3 compounds suggest that they, and presumably other n-alkyliridium(III) complexes, undergo reversible β-hydride elimination more slowly than the sec-alkyl complexes. The D labels in the isobutyl-d2 complex IrClI{CD2CH(CH3)2}(CO)(PMe3)2 scramble over all the alkyl C atoms when the compound is heated in CD2Cl2/CD3OD, indicating that a tert-butyliridium(III) species is accessible. Surprisingly, the complexes IrClI{CH2CH(CH3)CH2CH3}(CO)(PMe3)2 and IrClI{CH2CH2CH(CH3)2}(CO)(PMe3)2 do not interconvert under the same conditions, implying that a tert-pentylirdium(III) species cannot be formed. The results are compared with alkyl group rearrangements that occur in other transition-metal systems, especially those promoted by dissociation of Ph3P in (η-C5H5)FeR(CO)(PPh3).

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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 《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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Thiomorpholine – Wikipedia,
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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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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem

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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Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem