96125-50-7Relevant articles and documents
Facile ionic liquid-mediated protocol for the regioselective synthesis of 1,5-benzothiazepines
Jain, Renuka,Yadav, Tripti,Kumar, Manoj,Yadav, Ashok K.
experimental part, p. 1889 - 1900 (2011/06/27)
An efficient one-step ionic liquid-mediated green protocol for the regioselective synthesis of (+)=(±)-cis-2-(4-methoxy/benzyloxyphenyl)-3- hydroxy-2,3-dihydro-1,5- benzothiazepin-4-[5H]-ones has been developed from the reaction between substituted 2-aminobenzenethiol and methyl-(±)-trans-3- (4-methoxy/benzyloxy phenyl)glycidate, under nitrogen atmosphere, at 60±2 °C. The reaction has been performed in ionic liquids (viz, 1-butyl-3-methylimidazolium bromide/hexafluorophosphate), and the yields of the 1,5-benzothiazepine derivatives were found to be excellent. The cis-stereoisomer was obtained as the major product along with a trans-isomer as minor product.