Substitution of hydroxyl groups with alkynyl moieties using alkynylboron dihalides: an efficient approach to secondary alkylacetylene derivatives.
The reaction of alkynylboron dihalides with benzylic, allylic, and propargylic alcohols provides an efficient route to internal acetylenes. Isomerization of the product alkynes does not occur under the reaction conditions.
Kabalka
George W
GW
Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, USA. kabalka@utk.edu
Yao
Min-Liang
ML
Borella
Scott
S