title: Transition-metal/Lewis acid free synthesis of acyl benzothiophenes via C-C bond forming reaction.
abstract: A simple and single-step synthesis of 2- and 3-acyl substituted benzothiophenes has been described via environmentally benign acylation of benzothiophene with in situ generated acyl trifluoroacetates. Both aliphatic and aromatic carboxylic acids participated in trifluoroacetic anhydride/phosphoric acid mediated C-C bond forming reactions under solvent-free conditions affording acyl benzothiophenes in good overall yields.
authors.affiliation: Department of Chemistry, MNR Post Graduate College, Kukatpally, Hyderabad-500072, India. sarbani277@yahoo.com
authors.forename: Sarbani
authors.initials: S
authors.lastname: Pal
authors.forename: Mohammad Ashrafuddin
authors.initials: MA
authors.lastname: Khan
authors.forename: P
authors.initials: P
authors.lastname: Bindu
authors.forename: P K
authors.initials: PK
authors.lastname: Dubey