Highly efficient green synthesis of the photochromic spironaphthoxazines using an eco-friendly choline hydroxide catalyst
作者:Shailesh N. Vajekar、Ganapati S. Shankarling
DOI:10.1080/00397911.2019.1694690
日期:2020.2.1
Abstract A greener route for the synthesis of the photochromic spironaphthoxazines employing a highlyefficient, biodegradable and recyclable choline hydroxide catalyst in an aqueous medium has been described. This methodology offers diverse advantages such as mild reaction conditions, short reaction time (1 h), excellent yields (up to 91%), and operational simplicity that make it a useful and attractive