Didentate phosphine ligands with alkenyl and alkynyl linker units as building blocks for dendrimer fixation

RA Findeis, LH Gade

Index: Findeis, Ralf A.; Gade, Lutz H. Journal of the Chemical Society, Dalton Transactions, 2002 , # 21 p. 3952 - 3960

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Citation Number: 8

Abstract

Using diethyl-2-methylmalonate as a starting material, the two diphosphines HCCCH2C (CH3)(CH2PPh2) 2 (7) and H2CCHCH2C (CH3)(CH2PPh2) 2 (13), containing alkynyl and alkenyl unit in the ligand backbone were prepared in multistep syntheses. These two ligands were employed in the synthesis of [{(CH3) 3SiCCCH2C (CH3)(CH2PPh2) 2} PdCl2](8) and [{(CH3) 3SiCCCH2C (CH3)(CH2PPh2) 2} PtCl2](9) as well as [{H2CCHCH2C (CH3)( ...