申请人:Kobayashi Perfumery Co., Ltd.
公开号:US03963781A1
公开(公告)日:1976-06-15
A method of preparing 2-hydroxy-3-alkyl-2-cyclopenten-1-one which comprises reacting 2-alkyl-5-carboalkoxycyclopentanone with nitrite in the presence of water and alkali; rendering the reaction system acidic; and either treating the mass for hydrolysis by heating or carrying out oxime exchange reaction in the presence of an aliphatic lower carbonyl compound added as an acceptor to the acidified reaction system.
一种制备2-羟基-3-烷基-2-环戊烯-1-酮的方法,包括在水和碱的存在下,将2-烷基-5-羧基烷氧基环戊酮与亚硝酸盐反应;使反应体系呈酸性;然后通过加热处理质量或在酸化反应体系中加入低碳酰基的脂肪族化合物作为受体,进行肟交换反应。