摘要
The chloroaluminate ionic liquid,composed of AlCl3 and 1-butyl-3-methylimidazolium chloride(Cl),is used as the solvent and catalyst to synthesize α-hydroxy esters from alkene and glyoxylate via the glyoxylateene reaction.Under the reaction conditions of 15 ℃,4 h,and AlCl3/Cl molar ratio of 2,the ethyl α-hydroxy-4-phenyl-4-pentenoate with high yield(95.2%) is obtained in the reaction of α-methyl styrene and ethyl glyoxylate.Other α-hydroxy esters can also be obtained in high yields through the glyoxylate-ene reaction.Moreover,the chloroaluminate ionic liquid can be reused several times.
The chloroaluminate ionic liquid, composed of AlCl3 and 1-butyl-3-methylimidazolium chloride ([bmim]Cl), is used as the solvent and catalyst to synthesize α-hydroxy esters from alkene and glyoxylate via the glyoxylate-ene reaction. Under the reaction conditions of 15 ℃ , 4 h, and AlCl3/[ bmim] Cl molar ratio of 2, the ethyl a-hydroxy-4-phenyl-4-pentenoate with high yield (95.2%) is obtained in the reaction of α-methyl styrene and ethyl glyoxylate. Other α-hydroxy esters can also be obtained in high yields through the glyoxylateene reaction. Moreover, the chloroaluminate ionic liquid can be reused several times.
出处
《催化学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第3期197-199,共3页
基金
浙江省自然科学基金(Y404058)资助项目