title: Synthesis of isochromenones and oxepines via Pd-catalyzed cascade cyclization of alkynes and benzynes involving C-H activation.
abstract: A new method for the synthesis of various isochromen-6-ones and phenanthro[1,10-bc]oxepines via a palladium-catalyzed cascade carbocyclization of 2-iodobenzyl-3-phenylpropiolates and 1-iodo-2-(2-(phenylethynyl)benzyloxy)benzenes with arynes is described. The reactions involve interesting biscarbocyclization of alkynes and benzynes and C-H bond activation.
authors.affiliation: Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan.
authors.forename: Kanniyappan
authors.initials: K
authors.lastname: Parthasarathy
authors.forename: Han
authors.initials: H
authors.lastname: Han
authors.forename: Chandran
authors.initials: C
authors.lastname: Prakash
authors.forename: Chien-Hong
authors.initials: CH
authors.lastname: Cheng