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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 6, Number 6
BKCSDE 6(6)
June 20, 1985 

 
Title
Syntheses of conjugated Dienes from 1-Alkenylboronic Acids by Palladium (Ⅱ) Salt
Author
Jin Il Kim, Jong Tae Lee, Kyu dong Yeo
Keywords
Abstract
The reactions of (E)-1-hexenylboronic acid (1) or (E)-β-phenylethenylboronic acid (2) with various olefins in acetonitrile at room temperature in the presence of lithium palladium chloride and triethylamine gave the corresponding (E, E)-conjugated dienes stereospecifically in good yields. (E)-β-Phenylethenylboronic acid (2) was more reactive than (E)-1-hexenylboronic acid (1) in these vinylations. And these vinylations were also carried out catalytically when 10 mol % of lithium pallaidium chloride and cupric chloride, as the reoxidant of palladium, or 10 mol % of palladium acetate and mercuric acetate were added instead of stoichiometric amount of lithium palladium chloride.
Page
366 - 369
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