Microwave-assisted one-pot synthesis of benzothiazole and benzoxazole libraries as analgesic agents
作者:C PRAVEEN、A NANDAKUMAR、P DHEENKUMAR、D MURALIDHARAN、P T PERUMAL
DOI:10.1007/s12039-012-0251-3
日期:2012.5
Microwave-assisted synthesis of benzothiazole and benzoxazole libraries via PIFA promoted cyclocondensation of 2-aminothiophenols/2-aminophenols with aldehydes under one-pot condition in good to excellent yields was achieved. Twenty compounds have been investigated for their analgesic activity and showed moderate to good activity.
Pyridinium chlorochromate (PCC) supported on silica gel effects the oxidative cyclization of structurally diverse thiophenolic and phenolic Schiff's bases, thereby providing an efficient and convenient method for the synthesis of a library of 2-arylbenzothiazoles and 2-arylbenzoxazoles.