One-Pot Synthesis of Trifluoromethyl-Substituted Imidazobenz[1,2-d]- and -[1,2-c]isoxazoles
作者:T. S. Khlebnikova、Yu. A. Piven’、V. G. Isakova、V. A. Smaliak、A. V. Baranovsky、F. A. Lakhvich
DOI:10.1134/s1070363220040295
日期:2020.4
5-dihydro-3H-imidazo[4',5':5,6]benz[1,2-d]isoxazoles and 8-trifluoromethyl-4,5-dihydro-3H-imidazo[4',5':3,4]benz[1,2-c]isoxazolones was realized by one-pot oxidation of 3-trifluromethyl-6,7-dihydrobenz[d]- or [c]isoxazoles with selenium dioxide in glacial acetic acid followed by a condensation of formed in situ 3-trifluromethyl-6,7-dihydrobenz[d]- or [c]isoxazole-4,5-diones with benzaldehydes in the presence of
摘要区域异构的8-三氟甲基-4,5-二氢-3 H-咪唑并[4',5':5,6]苯并[1,2- d ]异恶唑和8-三氟甲基-4,5-二氢-3 H -咪唑并[4',5':3,4]苯并[1,2 -c ]异恶唑酮是通过用硒一锅氧化3-三氟甲基-6,7-二氢苯并[ d ]-或[ c ]异恶唑来实现的在冰醋酸中加入二氧化氯,然后在乙酸铵存在下,将形成的原位3-三氟甲基-6,7-二氢苯并[ d ]-或[ c ]异恶唑-4,5-二酮与苯甲醛缩合。