Stoicheiometric dimerisation of methyl acrylate mediated by Pd(acac)2·HBF4 systems and its relevance to the mechanism of catalytic dimerisation of acrylates (Hacac = MeCOCH2COMe)
Abstract
Protonation of Pd(acac)2(Hacac = MeCOCH2COMe) by HBF4·OEt2 leads to ionic [Pd(acac)S2][BF4] complexes, isolated for S = MeCN, which react with methyl acrylate to give selectively linear dimers via a palladium(IV) metallocycle.