A general one-pot, three-component mono N-alkylation of amines and amine derivatives in lithium perchlorate/diethyl ether solution
An efficient, general procedure for reductive monoalkylation of amines and amine derivatives with aldehydes is reported. Treatment of aldehydes with primary amines, secondary amines, O-trimethylsilylhydroxylamine, and N,N-dimethylhydrazine in lithium perc
A novel, one-pot synthesis of α-C-cyanohydrazines in the presence of lithium perchlorate/diethylether solution (5.0 M)
Condensation of N,N-dimethylhydrazine, an aldehyde in lithium perchlorate/diethylether solution (5.0 M) gave N,N-dimethylhydrazone, which were treated with trimethylsilylcyanide to afford α-C-cyanohydrazine. These compounds are important precursors of nitrogen-substituted reagents.
Heydari, Akbar,Baharfar, Robabe,Rezaie, Mohsen,Aslanzadeh, Saied M.
p. 368 - 369
(2007/10/03)
Derivatives of imidazolidin-2-ones and -2-thiones
There are disclosed herein derivatives of imidazolidin-2-ones and -2-thiones of the formula I SPC1 and their acid addition salts with pharmacologically acceptable acids, in which R1 is hydrogen or lower alkyl; R2 is lower alkyl, nitr
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(2008/06/13)
Novel hydrazinocarboxamide derivatives and preparation thereof
α-Hydrazinocarboxamide and α-(α'-acylhydrazino)-carboxamide derivatives of formula I STR1 in which R1 and R2 each are lower alkyl or R1 and R2 together with the nitrogen atom to which they are joined form a pipe
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(2008/06/13)
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