机构地区: 广西师范大学化学化工学院
出 处: 《有机化学》 2006年第3期349-353,共5页
摘 要: 以天然松香为原料合成了4个新型手性季铵盐类相转移催化剂,并用于催化不对称查尔酮环氧化反应,发现这类手性相转移催化剂可以有效地催化查尔酮的不对称环氧化,环氧化产物ee最高达20%. Four novel chiral quaternary ammonium salts were synthesized from naturally occurring rosin. These compounds were employed as phase-transfer catalysts in asymmetric epoxidation reactions of chalcone, affording the corresponding epoxides in high yields and up to 20% ee.