The preparation of α-hydroxy cycloalkanones from keto acids was effectively achieved by constant current electrolysis in the presence of Bu3P in an undivided cell under an N2 atmosphere, where the α-oxy ylides generated by the in situ cathodic reduction of acyl tributylphosphonium ions, formed anodically from tributylphosphine and carboxylic acids, seems to function as a novel acyl anion equivalent.
通过恒电流电解法,在N2气氛下,使用Bu3P作为催化剂,在一个不分隔的电解槽中,成功实现了
酮酸制备α-羟基环烷酮。在这个过程中,由酰基
三苯基膦阴离子在阴极原位还原生成的α-氧叶立德,似乎扮演了一种新颖的酰基阴离子等价物的角色。这些酰基
三苯基膦阴离子是由
三苯基膦和
羧酸在阳极形成的。