A synergic catalysis of (salicylaldiminate)2AlEt and (BnO)2AlEt in the ring-opening polymerization of ε-caprolactone
A synergic catalysis of (salicylaldiminate)2AlEt and (BnO)2AlEt in the ring-opening polymerization of ε-caprolactone
复制标题
(水杨醛二酸酯)2AlEt 和 (BnO)2AlEt 协同催化 ε-己内酯开环聚合
DOI:
10.1038/s41428-019-0187-2
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发表时间:
2019
期刊:
影响因子:
2.8
通讯作者:
Oishi Masataka
中科院分区:
文献类型:
--
作者:
Nomura Nobuyoshi;Yamakawa Daisuke;Marutani Tomohiro;Aoyama Takuji;Oishi Masataka
The solid-state structure of L2AlEt is reported by X-ray diffraction. BnOH (1 equiv. to L2AlEt) selectively reacts with ~0.5 equiv. of L2AlEt to afford free L–H (~1 equiv.) while maintaining L2AlEt (~0.5 equiv.). The stoichiometric balance suggests the formation of 0.5 equiv. of (BnO)2AlEt. The ROP of CL via the synergic catalysis of the two coexistent Al-complexes, L2AlEt (0.50 mol%) as a Lewis acid activator of CL and (RO)2AlEt (0.50 mol%) as a nucleophile, is proposed.