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Yu.?A.?MartinovichEmail author S.?M.?Ramsh F.?Hamoud V.?S.?Fundamenskii V.?V.?Gurzhii V.?I.?Zakharov E.?S.?Khrabrova 《Russian Journal of Organic Chemistry》2018,54(6):878-885
Three-component condensation of thiourea with equimolar amounts of formaldehyde and morpholine afforded N-(morpholin-4-ylmethyl) derivative, whereas analogous reaction with 2 equiv of formaldehyde and amine gave symmetrical N,N′-bis(morpholin-4-ylmethyl)thiourea. In the condensation of thiourea with piperidine and formaldehyde, only symmetrical N,N′-bis(piperidin-1-ylmethyl)thiourea was isolated, regardless of the reactant ratio. 相似文献
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N. A. Shenberg A. I. Ginak S. M. Ramsh E. S. Khrabrova 《Chemistry of Heterocyclic Compounds》1989,25(1):91-93
Hydroxymethylation and aminomethylation reactions of 5-arylidene-2-thio-4-oxazolidinones lead to the formation of substitution products at the ring nitrogen atom; this has been attributed to thermodynamic reaction control.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 106–108, January, 1989. 相似文献
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S. M. Ramsh E. S. Khrabrova L. P. Shamina 《Chemistry of Heterocyclic Compounds》1990,26(12):1387-1391
Aminomethylation of pemoline with primary amines has given the corresponding oxazolo[3,2-a]-1,3,5-triazines or oxazolo[3,2-a]-1,3,5,7-tetrazocines. When secondary amines were used, the 5-amino- or 3,5-bis(aminomethyl) derivatives were obtained.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1670–1674, December, 1990.The authors thank A. V. Dogadin for obtaining and discussing the PMR spectra. 相似文献
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According to IR spectroscopic analysis, the compounds 2-amino-4-thiazolinone and 2-arylamino-4-thiazolinone exist in the amino form in the crystalline state.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 32–37, January, 1985. 相似文献
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5-Benzylidenecreatinine and 2-phenylglycocyamidine exist in DMSO-D6 in the imino form. In basic medium, the two compounds exhibit a dual reactivity with respect to methylating agents, forming N(2)- and N(3)-methyl derivatives.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 62–65, January, 1991.The authors wish to express their gratitude to A. V. Dogadin for running the PMR spectra. 相似文献
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F. Hamoud S. M. Ramsh V. S. Fundamenskii V. V. Gurzhii M. A. Brusina N. G. Arkhipova P. A. Sedunova N. L. Medvedskii E. S. Khrabrova 《Russian Journal of Organic Chemistry》2016,52(1):121-126
N,N′-Bis(hydroxymethyl)thiourea reacted with propane-1,3-diamine at a molar ratio of 2 : 1 to give 5,5′-propane-1,3-diylbis(1,3,5-triazinane-2-thione), whereas 1,3,5,7,11,13,15,17-octaazatricyclo[15.3.1.17,11]-docosane-4,14-dithione was obtained in the reaction with equimolar amounts of the reactants. Tricyclic product was also formed in the three-component condensation of thiourea with formaldehyde and propane-1,3-diamine at a ratio of 1 : 3 : 1. The reactions of N,N′-bis(hydroxymethyl)thiourea with ethane-1,2-diamine (2 : 1) and of thiourea with formaldehyde and butane-1,4-diamine (1 : 2 : 1) afforded 5,5′-(ethane-1,2-diyl)bis(1,3,5-triazinane-2-thione) and 5,5′-(butane-1,4-diyl)bis(1,3,5-triazinane-2-thione), respectively. 相似文献
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Mammeri O. A. Hamoud F. Sobina A. A. Ramsh S. M. Fundamensky V. S. Gurzhiy V. V. Khrabrova E. S. 《Russian Journal of General Chemistry》2020,90(11):2043-2047
Russian Journal of General Chemistry - Condensation of 1,3-dialkylthiourea, formaldehyde, and terminal amino acids (C2, C3, or C4) taken in the 1 : 2 : 1 molar ratio has afforded the terminally... 相似文献
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F. Hamoud S. М. Ramsh V. S. Fundamenskii V. V. Gurzhii V. I. Zakharov V. А. Kuznetsov D. V. Krivorotov Е. S. Khrabrova 《Russian Journal of Organic Chemistry》2017,53(8):1258-1267
Aminomethylation of guanidine hydrochloride with aqueous formaldehyde and simplest amino acids depending on the reagents ratio results in bicyclic hydrochlorides (1: 4: 2) or tricyclic iminium chlorides (1: 6: 3) that in their turn may be converted into internal salts: zwitter-ions or betaines respectively. 相似文献