1,1-Alkenylboration of diarylphosphino-enynes: convenient synthetic entry to vicinal P/B Lewis pairs at extended conjugated π-frameworks
作者:Guo-Qiang Chen、Gerald Kehr、Constantin G. Daniliuc、Gerhard Erker
DOI:10.1039/c4ob02134g
日期:——
Alkenylboranes R-CHCH-B(C6F5)2 undergo carbon–carbon coupling by means of 1,1-alkenylboration with diarylphosphino-enynes to give conjugated hexatriene derivatives that bear a vicinal pair of B(C6F5)2 and PAr2 functionalities at the framework.
Reactions of a methylzirconocene cation with phosphinoalkynes: an alternative pathway for generating Cp2Zr(ii) systems
作者:Xin Xu、Roland Fröhlich、Constantin G. Daniliuc、Gerald Kehr、Gerhard Erker
DOI:10.1039/c2cc31883k
日期:——
A methylzirconocene cation (with a [B(C6F5)4]− counterion) transfers a methyl cation equivalent to diphenylphosphino-alkynes to generate (η2-alkyne)ZrCp2 complexes bearing the [RCCPPh2Me]+ ligand. Two examples of the PMe3 ligand stabilized [(Me3P)Cp2Zr(η2-RCCPPh2Me)+][B(C6F5)4−] salts were characterized by X-ray diffraction.