New aminocyclohexadiene isomer from Hantzsch pyridine synthesis
1-Aminocyclohexa-1,3-diene derivatives 4 and 14 were obtained by the reaction of N-methyl aminocrotonanilides 2 with ethyl benzylidene acetoacetate or benzylidene acetoacetone under.Hantzsch pyridine synthesis conditions.Other products of carbocyclization - cyclohexenones 5, 6 and hydroxycyclohexanone 7 were also isolated from the same reaction.
SYNTHESIS OF ETHOXYCARBONYL-1,4- AND -1,2-DIHYDROPYRIDINECARBOXYLIC ACID AMIDES
3-Carbamoyl derivatives of 4-phenyl-5-ethoxycarbonyl-2,6-dimethyl-1,4-dihydropyridine were obtained by cyclocondensation of 2-benzylideneacetoacetic ester with β-aminocrotonic acid amide or anilides.In the alkylation of 4-phenyl-5-ethoxycarbonyl-2,6-dimet
Zandersons, A.,Lusis, V.,Vigante, B.,Mutsenietse, D.,Dubur, G.
p. 1339 - 1347
(2007/10/02)
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