Catalyst-free, visible light irradiation promoted synthesis of spiroacenaphthylenes and 1H-pyrazolo [1,2-b]phthalazine-5,10-diones in aqueous ethyl lactate
Catalyst-free, visible light irradiation promoted synthesis of spiroacenaphthylenes and 1H-pyrazolo [1,2-b]phthalazine-5,10-diones in aqueous ethyl lactate
复制标题
DOI：
10.1016/j.jphotochem.2020.113041
复制
发表时间：
2021-02-15
影响因子：
4.3
通讯作者：
Mohamadpour, Farzaneh
中科院分区：
文献类型：
--
作者：
Mohamadpour, Farzaneh
采用无催化剂的三组分串联方法，在室温下，以乳酸乙酯为溶剂，通过Knoevenagel-Michael环化缩合反应合成了螺苊烯和1H-吡唑并[1，2-B]酞嗪-5，10-二酮。该方法具有能量高效、无催化剂、产率高、操作简单、原子经济性好、原料廉价易得等优点，符合可持续发展和绿色化学的特点。
Catalyst-free three-component tandem approach can synthesize spimacenaphthylenes and 1H-pyrazolo [1,2-b] phthalazine-5,10-diones by Knoevenagel-Michael cyclocondensation via visible light irradiation in aqueous ethyl lactate at room temperature. The significant advantages of the present protocol include energy-effectiveness, catalyst-free, excellent yields, operational simplicity, high atom-economy, commercially accessible, inexpensive preliminary substances, so it meets some features of sustainablility and green chemistry.