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Enhanced Activity of the Tail-to-tail Dimerization of Michael Acceptors Catalyzed by N-Heterocyclic Carbene and Subsequent Polymer Synthesis from the Resulting Dimers
被引:4
|作者:
Kawai, Hiroki
[1
]
Fukumoto, Aoi
[1
]
Matsuoka, Shin-ichi
[1
]
Suzuki, Masato
[1
]
机构:
[1] Nagoya Inst Technol, Grad Sch Engn, Dept Life Sci & Appl Chem, Showa Ku, Gokiso Cho, Nagoya, Aichi 4668555, Japan
关键词:
Tail-to-tail dimerization;
N-Heterocyclic carbene;
Polyester;
PROTON-TRANSFER POLYMERIZATION;
RING-OPENING POLYMERIZATION;
TRANSITION-METAL CATALYSIS;
METHYL ACRYLATE;
SELECTIVE DIMERIZATION;
UMPOLUNG;
METHACRYLATE;
RUTHENIUM(0);
ACTIVATION;
COMPLEXES;
D O I:
10.1246/cl.190097
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
In this study, the efficiency of tail-to-tail dimerization of Michael acceptors catalyzed by N-heterocyclic carbene has been significantly improved. By increasing the reaction temperature to 200 degrees C, turnover number (TON) values of 146 and 185 were achieved for the dimerization of n-butyl and allyl methacrylates, respectively. Glycidyl methacrylate also underwent the dimerization without ring-opening of the epoxy group. The polymer synthesis from the resulting dimers was also demonstrated through transesterification polycondensation and thiol-ene "click" polyaddition.
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页码:558 / 561
页数:4
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