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4699118 
Journal Article 
Synthesis of 5-vinyl-2-norbornene through Diels-Alder reaction of cyclopentadiene with 1,3-butadiene in supercritical carbon dioxide 
Meng, F; Feng, X; Wang, W; Bao, M 
2017 
Chinese Chemical Letters
ISSN: 1001-8417
EISSN: 1878-5964 
28 
900-904 
An efficient method for the synthesis of 5-vinyl-2-norbornene from cyclopentadiene and 1,3-butadiene was developed. The Diels-Alder reaction of cyclopentadiene with 1,3-butadiene proceeded smoothly in supercritical carbon dioxide in the absence of any polymerization inhibitor to produce the corresponding 5-vinyl-2-norbornene in satisfactory yield with high selectivity. (C) 2016 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved. 
5-Vinyl-2-norbornene; Diels-Alder reaction; Cyclopentadiene; 1,3-Butadiene; Supercritical carbon dioxide