中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,3-二氢苯并吡喃-4-酮 | 2,3-dihydro-4H-1-benzopyran-4-one | 491-37-2 | C9H8O2 | 148.161 |
A simple, efficient, economical and environmentally benign method has been developed for one-pot three component synthesis of isoxazolyl amino chromeno[4,3-b]pyridine derivatives from 4-amino-3-methyl-5-styrylisoxazoles, malononitrile and (E)-3-benzylidenechroman-4-one by using acetic acid (AcOH) as a promoter and water as a green reaction medium under thermal condition. The interesting features of this method are environmental friendly, metal-free, less reaction time, wide substrate scope, operational simplicity, easy purification of products and good yields.