摘要3-硝基-6-苯基六-3,5-二烯-2-酮与4-甲基-和4-氯硫代苯酚的反应在共轭二烯酮体系下生成1,4-和1,6-加成产物。以4-甲基硫代苯酚的1,4-加成加合物为例,显示了其在溶液中转化为1,6-加成产物。4-3--3-硝基-2-苯乙烯-2-2,3-二氢苯并[ b ] [1,4]噻嗪类通过使3-硝基-6-苯基六-3,5-二-2-酮与邻-氨基苯硫酚。
Synthesis and Structure of Geminally Activated 1-Nitro-4-phenylbuta-1,3-dienes
摘要:
The condensation of cinnamaldehyde with nitro-substituted CH acids (ethyl nitroacetate, nitroacetone, nitroacetophenone, and nitroacetonitrile) afforded a series of geminally activated 1-nitro-4-phenylbuta- 1,3-dienes. Their structure was determined on the basis of a set of H-1, C-13-{1H}, N-15 NMR, and IR spectra.