Activated Zinc Complexes Supported by a Neutral, Phosphinimine-Containing Ligand: Synthesis and Efficacy for the Polymerization of Lactide

作者：Wheaton Craig A; Ireland Benjamin J; Hayes Paul G^*

来源：Organometallics, 2009, 28(5): 1282-1285.

DOI：10.1021/om801034k

A general approach for the synthesis of cationic zinc complexes supported by neutral ancillary ligands has been developed and exploited to prepare [LH][B(C(6)F(5))(4)] (L = 4-(2,6-(i)Pr(2)-C(6)H(3)NPPh(2))dbf), 1a, and [LH][SO(3)CF(3)], 1b) using [HNMe(2)Ph][B(C(6)F(5))(4)] and triflic acid, respectively. Reactions of la and 1b with diethylzinc afforded the corresponding complexes [LZnEt][B(C(6)F(5))(4)], 2a, and [LZnEt(OSO(2)CF(3))], 2b. Both zinc complexes have exhibited notable activities for the catalytic polymerization of L-lactide.

• 出版日期2009-3-9