The reactions of isatin. benzotriazole. and succinimide with formaldehyde and methylamine yield monoamines RCH2N(Me)CH2R and methylenediamines RCH2N(Me)CH2N(Me)CH2R. The use of ethylenediamine as the amino component affords N,N'-disubstituted imidazolidines, while the reactions with 3-aminopropan-1-ol give N-substituted tetrahydro-1,3-oxazines. RCH2NBu21 was obtained from succinimide. formaldehyde, and diisobutylamine. Nitrosative cleavage of the amines obtained was studied: it was shown that monoamines and methylenediamines give N-nitrosoamines RCH2N(NO)Me, which were structurally characterized by X-ray diffraction analysis, RCH2NBu21 affords diisobutylnitrosamine. while imidazolidines transform into dinitroso compounds RCH2N(NO)CH2CH2N(NO)CH2R.
Katritzky, Alan R.; Yannakopoulou, Konstantina; Lue, Ping, Journal of the Chemical Society. Perkin transactions I, 1989, p. 225 - 233
作者:Katritzky, Alan R.、Yannakopoulou, Konstantina、Lue, Ping、Rasala, Danuta、Urogdi, Laszlo
DOI:——
日期:——
Benzotriazole Mediated Synthesis of Some 5-Alkyl-Dihydro-4H-1,3,5-Dithiazines
作者:Naseem Peerzada、Ian Neely
DOI:10.1080/00397910008087380
日期:2000.2
An efficient synthesis of N-substituted dihydro-4H-1,3,5-dithiazines is described. N,N-Bis(benzotriazolylmethyl) alkylamines 1 smoothly under go cyclisation reaction in the presence of formaldehyde and hydrogen sulfide to give 5-substituted dihydro-4H-1,3,5-dithiazines 2.
KATRITZKY, ALAN R.;YANNAKOPOULOU, KONSTANTINA;LUE, PING;RASALA, DANUTA;UR+, J. CHEM. SOC. PERKIN TRANS. PT 1,(1989) N, C. 225-233
作者:KATRITZKY, ALAN R.、YANNAKOPOULOU, KONSTANTINA、LUE, PING、RASALA, DANUTA、UR+
DOI:——
日期:——
KATRITZKY A. R.; RACHWAL S.; RACHWAL B., J. CHEM. SOC. PERKIN TRANS.,(1987) N 4, 799-804
作者:KATRITZKY A. R.、 RACHWAL S.、 RACHWAL B.
DOI:——
日期:——
——
作者:A. G. Korepin、P. V. Galkin、N. M. Glushakova、V. P. Lodygina、I. L. Eremenko、S. E. Nefedov、L. T. Eremenko
DOI:10.1023/a:1013094720611
日期:——
The reactions of isatin. benzotriazole. and succinimide with formaldehyde and methylamine yield monoamines RCH2N(Me)CH2R and methylenediamines RCH2N(Me)CH2N(Me)CH2R. The use of ethylenediamine as the amino component affords N,N'-disubstituted imidazolidines, while the reactions with 3-aminopropan-1-ol give N-substituted tetrahydro-1,3-oxazines. RCH2NBu21 was obtained from succinimide. formaldehyde, and diisobutylamine. Nitrosative cleavage of the amines obtained was studied: it was shown that monoamines and methylenediamines give N-nitrosoamines RCH2N(NO)Me, which were structurally characterized by X-ray diffraction analysis, RCH2NBu21 affords diisobutylnitrosamine. while imidazolidines transform into dinitroso compounds RCH2N(NO)CH2CH2N(NO)CH2R.