摘要
4-(Succinimido)-1-butane sulfonic acid was shown to be an efficient and reusable Brnsted acid catalyst for the synthesis of pyrano[4,3-b]pyran derivatives using thermal and ultrasonic conditions. The catalyst was prepared by mixing succinimide and 1,4-butanesultone, which is simpler and safer than the preparation of succinimide sulfonic acid. This method has the advantages of high yield, clean reaction, simple methodology, and short reaction time. The catalyst can be recycled without loss of activity.
4-（Succinimido）-1-butane sulfonic acid was shown to be anefficient and reusable Br？nsted acid catalyst for the synthesis of pyrano[4,3-b]pyran derivatives using thermal and ultrasonic conditions. The catalyst was prepared by mixing succinimide and 1,4-butanesultone, which is simpler and safer than the preparation of succinimide sulfonic acid. This method has the advantages of high yield, clean reaction, simple methodology, and short reaction time. The catalyst can be recycled without loss of activity.
出处
《催化学报》
SCIE
EI
CAS
CSCD
北大核心
2015年第5期728-733,共6页
基金
the financial support from University Malaya to Project GC 001A-14-AET
关键词
吡喃衍生物
琥珀酰亚胺
超声波照射
酸催化剂
亚胺基
磺酸
布朗
丁烷
Bronsted acid Pyrano[4,3-b]pyran 4-Hydroxy-6-methy pyran-2-one Three-component reaction One-pot condensation
