Stereoselective formation of a single-stranded helicate: structure of a bis(palladium-allyl)quaterpyridine complex and its use in catalytic enantioselective allylic substitution.
Chiral C2-symmetric quaterpyridine L reacts with [Pd(eta3-C3H5)Cl]2 to form a chiral single-stranded helical binuclear palladium complex of formula [Pd2(eta3-C3H5)2(L)]2+; the complex can efficiently catalyze allylic substitution of 1,3-diphenylprop-2-enyl acetate with dimethyl malonate with enantioselectivity up to 85%.
Kwong
Hoi-Lun
HL
Department of Biology and Chemistry, Open Laboratory of Chirotechnology, Institute of Molecular Technology for Drugs Discovery and Synthesis, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China. bhhoik@cityu.edu.hk
Yeung
Ho-Lun
HL
Lee
Wing-Sze
WS
Wong
Wing-Tak
WT