Literature DB >> 11975611

A new reaction of aryl aldehydes with aryl acetylenes in the presence of boron trihalides.

George W Kabalka1, Zhongzhi Wu, Yuhong Ju.   

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.

Entities:  

Year:  2002        PMID： 11975611     DOI： 10.1021/ol025696a

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  2 in total

1.  Arylethyne Bromoboration-Negishi Coupling Route to E- or Z-Aryl-Substituted Trisubstituted Alkenes of ≥98% IsomericPurity. New Horizon in the Highly Selective Synthesis of Trisubstituted Alkenes.

Authors:  Chao Wang; Zhaoqing Xu; Tomas Tobrman; Ei-Ichi Negishi
Journal:  Adv Synth Catal       Date:  2010-03-08       Impact factor: 5.837

2.  Highly regio- and stereoselective synthesis of (Z)-trisubstituted alkenes via propyne bromoboration and tandem Pd-catalyzed cross-coupling.

Authors:  Chao Wang; Tomas Tobrman; Zhaoqing Xu; Ei-ichi Negishi
Journal:  Org Lett       Date:  2009-09-17       Impact factor: 6.005
  2 in total

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