Dual zinc catalysts for
<i>L</i>
‐lactide polymerization and reaction of CO
<sub>2</sub>
with cyclohexene oxide
作者:Wei‐Chu Wang、Shih‐Hsien Hsu、Yu‐Chia Su、Hsuan‐Ying Chen、Chu‐Chieh Lin
DOI:10.1002/jccs.201900168
日期:2019.9
revealed excellent catalytic activity to ring‐opening polymerization (ROP) of LA in the presence of benzyl alcohol. Among them, [L HZnEt] (1) showed the highest activity with 82% conversation within 45 s. In contrast, [L XZn 2(OAc) 3] (6–9) were inactive in ROP of L‐lactide. In addition, all of these Zn complexes demonstrated moderate activity in the reaction of CO2 with cyclohexene oxide in the presence
一系列锌络合物[ L X ZnEt](1-5)和[ L X Zn 2(OAc)3 ](6-9),与NNO三齿Schiff碱配体(2-((((2-合成了(环己基[甲基]氨基)甲基)苯基]亚氨基)甲基)酚盐(CAP)衍生物,它们对L-丙交酯(LA)的开环聚合(ROP )和CO 2与还研究了环己烯氧化物。在苯甲醇存在下,所有[ L X ZnEt]均对LA的开环聚合(ROP)表现出出色的催化活性。其中,[ L H ZnEt](1)在45 s内显示出最高的活性,对话率为82%。相反,[L X Zn 2(OAc)3 ](6–9)在L-丙交酯的ROP中没有活性。另外,所有这些Zn配合物在Bu 4 NCl存在下在CO 2与环己烯的反应中均表现出中等活性。