Cyclohexene-4-carbaldehyde in the Synthesis of 4-(Cyclohex-3-enyl)-Substituted 4H-Chromenes, 4H-Thiopyrans, 1,4,5,6,7,8-Hexahydroquinolines, 1,4-Dihydropyridines, Pyridines, and 6,7-Dihydro-5H-[1]pyrindines
作者:V. D. Dyachenko
DOI:10.1007/s11176-005-0463-z
日期:2005.10
Cyclocondensation of cyclohexene-4-carbaldehyde in the presence of morpholine with CH acids [malonodinitrile, dimedone, 1,3-cyclohexanedione, ethyl acetoacetate, cyanothioacetamide, β-aminophenol, resorcinol, and 4-(cyclopent-1-enyl)morpholine] yields the corresponding 4-(cyclohex-3-enyl)-substituted 4H-chromenes, 4H-thiopyrans, 1,4,5,6,7,8-hexahydroquinolines, 1,4-dihydropyridines, and 6,7-dihydro-5H-[1]pyrindines.
在吗啡啉存在下,环己烯-4-甲醛与CH酸(丙二腈、二甲基二酮、1,3-环己二酮、乙酰乙酸乙酯、氰硫乙酰胺、β-氨基苯酚、间苯二酚和4-(环戊-1-烯基)吗啡啉)进行环加成反应,生成相应的4-(环己-3-烯基)取代的4H-苯并吡喃、4H-噻吩并吡喃、1,4,5,6,7,8-六氢喹啉、1,4-二氢吡啶和6,7-二氢-5H-[1]吡啶并吡啶。