BIRKINSHAW, T. N.;GILLON, D. W.;HARKIN, S. A.;MEAKINS, G. D.;TIREL, M. D., J. CHEM. SOC. PERKIN TRANS., 1984, N 2, 147-153
作者:BIRKINSHAW, T. N.、GILLON, D. W.、HARKIN, S. A.、MEAKINS, G. D.、TIREL, M. D.
DOI:——
日期:——
2-(N,N-disubstituted amino)thiazoles with electron-withdrawing groups at position 5: preparation and investigation of structural features
作者:Timothy N. Birkinshaw、David W. Gillon、Shaun A. Harkin、G. Denis Meakins、Malcom D. Tirel
DOI:10.1039/p19840000147
日期:——
N-mono- and N,N-di-substituted cyanamides from cyanogen bromide has been developed. N,N-Disubstituted thioureas, obtained from the cyanamides, were condensed with α-bromo-α-cyano-ketones to give 5-cyano-2-(N,N-disubstituted amino)thiazoles and with α-bromo-ketones to give 2-(N,N-disubstituted amino)thiazoles. Substitution in the latter products afforded 5-trifluoroacetyl- and 5-nitro-2-(N,N-disubsti