摘要 : Cyclohexanol-1-ethylcarboxylate was prepared from readily available cyclohexanone cyanohydrin in 85.5% and treated with thionyl chloride (SOCl_2) in the presence of pyridine under argon atmosphere to provide ethyl cyclohexene-1-ca... 展开 Cyclohexanol-1-ethylcarboxylate was prepared from readily available cyclohexanone cyanohydrin in 85.5% and treated with thionyl chloride (SOCl_2) in the presence of pyridine under argon atmosphere to provide ethyl cyclohexene-1-carboxylate in 80% yield. This product was conveniently transformed to ethyl 3-oxo-cyclohexene-1-carboxylate in moderate yield (52%). 收起