Rapid and green synthesis of tetrahydrobenzo[b]pyran derivatives using reusable [EMIM][OH] ionic liquid
نویسندگان
1 دانشگاه تربیت مدرس
2
3 دانشگاه فردوسی مشهد
4 دانشگاه آزاد اسلامی
doi
10.22034/ajgc.2020.100332چکیده
Ethyl methyl imidazolium hydroxide [EMIM][OH] ionic liquid catalyzed green protocol was developed for efficient and one-pot three-component condensation of various aromatic aldehydes, malononitrile, and dimedone under microwave irradiation for the synthesis of tetrahydrobenzo[b]pyran derivatives. The reaction proceeds in a short time period to afford moderate to excellent yield of products. The ionic liquid was recycled and reused for multiple time significantly, without a change in its catalytic efficiency.
