Rapid and green synthesis of tetrahydrobenzo[b]pyran derivatives using reusable [EMIM][OH] ionic liquid

نویسندگان
Pagore, Vijay P. ID 1
Jadhav, Vivekanand B. ID 2
Bajad, Priti N. ID 3
Pawar, Rajendra P. ID 4

1 Department of Chemistry, Shri Muktanand College, Gangapur, Tq.-Gangapur, Dist.-Aurangabad (MS) India 431-109

2 Department of Chemistry, Shri Muktanand College, Gangapur, Tq.-Gangapur, Dist.-Aurangabad (MS) India 431-109

3 Department of Zoology, Shri Muktanand College, Gangapur, Tq.-Gangapur, Dist.-Aurangabad (MS) India 431-109

4 Department of Chemistry, Deogiri College, Station Road, Aurangabad (MS) India 431-005

doi
10.22034/ajgc.2020.100332
چکیده

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. 

کلیدواژه‌ها
Tetrahydrobenzo[b]pyran, Microwave irradiation, Ethyl methyl imidazolium hydroxide ionic liquid