节点文献
一锅煮法合成α,α-双酰基和α-酰基-α-烷氧羰基烯酮环氧硫缩酮
A Novel Synthesis of α,α-Dicarbonyl andα-Oxo-α-alkoxide Cyclic O,S-Ethylene Acetales
【Abstract】 A new method for the synthesis of the tit1e compounds 6 is described in this paper. Compounds 6 were obtained by an one-pot reaction process from β-dione and its analogues, 2-bromoethanol and carbon disulfide with potassium carbonate as the base. The possible mechanism is discussed. In this mechanism, a monoanion intermediate 3 is proposed, it reacts with 2-bromoethanol by a sequential nucleophilic and electrophilic reaction process to build the key intermediate 5. 6 is formed by the elimination of hydrosulfide from 5.
【关键词】 α-氧代烯酮环氧硫缩酮；
合成；
α-氧代烯酮二硫代缩酮；
2-溴乙醇；
【Key words】 α-Oxo ketene cyclic O； S-ethylene acetals； Synthesis； α-Oxo ketene dithioacetals； 2-Bromoethanol；
【Key words】 α-Oxo ketene cyclic O； S-ethylene acetals； Synthesis； α-Oxo ketene dithioacetals； 2-Bromoethanol；
【基金】 国家教育委员会优秀年轻教师基金
- 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,1997年02期
- 【分类号】O626
- 【被引频次】7
- 【下载频次】84