1-ALKENYLATION ON α-POSITION OF KETONE: PALLADIUM-CATALYZED REACTION OF TIN ENOLATES AND 1-BROMO-1-ALKENES
作者:Masanori Kosugi、Isao Hagiwara、Toshihiko Migita
DOI:10.1246/cl.1983.839
日期:1983.6.5
The reaction of tributyltinenolates, prepared from tributyltin methoxide and enol acetates in situ, with 1-bromo-1-alkenes in the presence of a catalytic amount of PdCl2(o-tolyl3P)2 was found to give the derivatives of allyl ketone in good yields.
ZIRCONIUM ASSISTED REGIOSELECTIVE ACYLATION OF DIENES WITH SATURATED OR UNSATURATED ESTERS TO LEAD TO β,γ-UNSATURATED CARBONYL COMPOUNDS
作者:Munetaka Akita、Hajime Yasuda、Akira Nakamura
DOI:10.1246/cl.1983.217
日期:1983.2.5
Regioselective formylation or acylation of isoprene at the C1 atom was realized by reaction of Cp2Zr(isoprene) with saturated esters followed by protonolysis with acetic acid. The corresponding reaction with various alkyl acrylates resulted in the formation of allyl vinyl ketones.