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α,α-二乙酰基二硫缩烯酮和芳醛的缩合反应研究
Studies on the Condensation Reaction of α,α-Diacetyl Ketene Dithioacetals with Arylaldehydes
【摘要】 在碱性条件下 ,α,α-二乙酰基二硫缩烯酮和芳醛的缩合反应受烷硫基的影响 .α,α-二乙酰基二苄硫缩烯酮 1和芳醛 3缩合生成单面缩合脱乙酰基产物α-肉桂酰基二苄硫缩烯酮 4 ;α,α-二乙酰基环二硫缩烯酮 2和芳醛 3缩合生成双面缩合产物α,α-二肉桂酰基环二硫缩烯酮 5 .
【Abstract】 The condensation reactions of α,α-diacetyl ketene dithioacetals with arylaldehydes catalyzed by sodium tert-butoxide were performed. These reactions were affected by the alkylthio groups. The deacylation-condensation products α-cinnamoyl ketene dibenzylthioacetals 4 were obtained by the reaction of α,α-diacetyl ketene dibenzylthioacetals 1 with arylaldehydes 3. α,α-Dicinnamoyl ketene cyclic dioacetals 5 was formed when the reaction was performed between α,α- diacetyl ketene cyclic dioacetals 4 and arylaldehydes 3.
【关键词】 α,α-二乙酰基二硫缩烯酮;
芳醛;
缩合反应;
【Key words】 α,α-Diacetyl ketene dithioacetals; Arylaldehydes; Condensation;
【Key words】 α,α-Diacetyl ketene dithioacetals; Arylaldehydes; Condensation;
【基金】 国家自然科学基金 (批准号 :2 986 2 0 0 4)资助
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2003年07期
- 【分类号】O621.25
- 【被引频次】26
- 【下载频次】260