title: Trifluoroacetic acid catalyzed highly regioselective bromocyclization of styrene-type carboxylic acid.
abstract: A trifluoroacetic acid catalyzed highly 6-endo regioselective bromocyclization of styrene-type carboxylic acid has been developed. The resulting 3,4-dihydroisocoumarines are valuable building blocks in organic synthesis.
authors.affiliation: Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
authors.forename: Tao
authors.initials: T
authors.lastname: Chen
authors.affiliation: Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore and Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. yyyeung@cuhk.edu.hk.
authors.forename: Ying-Yeung
authors.initials: YY
authors.lastname: Yeung