Exploring Steric Effects in Diastereoselective Synthesis of Chiral Aminophenolate Zinc Complexes and Stereoselective Ring-Opening Polymerization of <i>rac</i>-Lactide
作者:Haobing Wang、Yang Yang、Haiyan Ma
DOI:10.1021/acs.inorgchem.6b00378
日期:2016.8.1
loss of the stereoselectivity, whereas the decrease of the steric bulkiness of the X group results in a reverse of the diastereoselectivity, but shows no influence on the stereoselectivity. There is probably no direct relationship between the diastereoselectivity in complex synthesis and the stereoselectivity of the complex toward the ROP of rac-LA. The stereocontrol of these complexes might largely
一系列三齿的手性氨基酚前配体和相应的锌络合物,LZnX(L =(的小号)-2 - [(1-R 4 -2-吡咯烷基)CH 2 N(R 3) - ] CH 2 } -6--R 1 -4-R 2 -C 6 H 2 O,X = N(SiMe 3)2,R 3 = n Bu,R 4 = Bn:R 1 = R 2 = Cl(1),R 1 = R 2 = Me(2),R 1 = R 2 = t Bu(3); X = N(SiMe 3)2,R 1 =三苯甲基,R 2 = Me:R 3 =正辛基,R 4 = Bn(4),R 3 = Bn,R 4 = Bn(5),R 3 = n Bu,R 4=萘-1-基甲基(6),R 3=n Bu,R 4=i Pr(7);R 1 = R 2 =枯基,R 3 = Et,R 4 = Bn:X = N(SiMe3)2(8),已合成X = O t Bu(9),X = Et(10),X