A novel and facile synthesis of 3,5-Disubstituted isothiozoles under metal free conditions using acetophenones and dithioesters
作者:Chaithra Nagaraju、Swarup Hassan Ashok、Sadashivamurthy Shamanth、Sandhya C. Nagarakere、Makanahalli P. Sunilkumar、Rangappa Kanchugarakoppal Subbegowda、Kempegowda Mantelingu
DOI:10.1080/00397911.2020.1748656
日期:2020.9.1
Abstract A facile and conveniently simple new protocol is devised for the synthesis of 3,5-disubstituted and annulated isothiozoles under transition metal and catalyst freeconditions utilizing easily available acetophenones, dithioesters and NH4OAc. This strategy involves C=O and C=S functionalization via sequential imine formation followed by intra molecular cyclization and aerial oxidation forming