title: A new reaction of aryl aldehydes with aryl acetylenes in the presence of boron trihalides.
abstract: [reaction: see text]. The reactions of aryl aldehydes with 2 equiv of arylacetylenes in the presence of boron trichloride yield (E,Z)-1,3,5-triaryl-1,5-dichloro-1,4-pentadienes. Reactions carried out in the presence of boron tribromide generate the corresponding (Z,Z)-1,3,5-triaryl-1,5-dibromo-1,4-pentadienes.
authors.affiliation: Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, USA. kabalka@utk.edu
authors.forename: George W
authors.initials: GW
authors.lastname: Kabalka
authors.forename: Zhongzhi
authors.initials: Z
authors.lastname: Wu
authors.forename: Yuhong
authors.initials: Y
authors.lastname: Ju