Intramolecular heterocyclization and cyclopalladation of selenoanisole substituted propargyl imines: Synthesis and reactivity of Pd–C bond towards alkynes
摘要:
The intramolecular cyclization of o-SeMeC6H4C CC-(CF3)(=NAr) with [PdCl2(PhCN)(2)] to dimeric cyclopalladated benzoselenophene has been developed under mild conditions. The reactivity of the new dimeric cyclopalladated benzoselenophene is examined towards insertion of alkynes into Pd-C bond. The reactivity study is also extended to Pd-C bond of dimeric cyclopalladated benzothiophenes towards insertion of alkynes. (C) 2014 Elsevier B. V. All rights reserved.