title: Regioselective synthesis of highly functionalized alkenylboronates by Cu-catalyzed borylation of propargylic silylalkynes.
abstract: High regioselectivity was achieved in the Cu(i)-catalyzed borylation of internal propargylic alkynes with a silyl substituent to afford multifunctionalized alkenylboron compounds. While both the silyl and propargylic substituents are known to act as directing groups, a N-heterocyclic carbene (NHC)-Cu complex furnished β-vinylboronate products (relative to Si) with high selectivity.
authors: Department of Chemistry and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea. jaesook@skku.edu.
authors: Yeong Eun
authors: YE
authors: Kim
authors: DingXi
authors: D
authors: Li
authors: Jaesook
authors: J
authors: Yun