170881-18-2Relevant academic research and scientific papers
STABLE α-HYDRAZONOTHIOACETOPHENONES USED AS HETERODIENES
Charrier, J. D.,Reliquet, A.,Reliquet, F.,Meslin, J. C.
, p. 181 - 188 (2007/10/02)
Preparation of three stable α-dimethylhydrazonothioacetophenones containing an aromatic cycle substituted by strongly electron withdrawing groups (o-fluoro, o- or p-nitro) is described.By cycloaddition, these compounds react with acrylic dienophiles (acrolein, meethylvinylketone, methylacrylate, acrylonitrile) or with cyclic dienophiles (N-methyl or N-phenylmaleimide) to lead to 3,4-dihydro-2H-1,4-thiazines, 2H-1,4-thiazines or 4H-1,4-thiazines in good yields.Key words: α-Dimethylhydrazonothioacetophenones, 3,4-dihydro-2H-1,4-thiazines, 2H-1,4-thiazines, 4H-1,4-thiazines.
