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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 20, Number 12
BKCSDE 20(12)
December 20, 1999 

 
Title
2-(Multimethoxyphenyl)-4-methylene-1,3-dioxolane: (III) Polymerization of 2-(2,4-Dimethoxyphenyl)-4-methylene-1,3-dioxolane with Various Cationic Catalysts
Author
Won-Cheoul Jang, Jang-Soon Bae, Myoung-Seon Gong
Keywords
Abstract
The 2-(2,4-dimethoxyphenyl)-4-MDO (2) underwent polymerization with ring opening as well as cyclization reaction in the presence of various cationic catalysts such as boron trifluoride, trifluoromethanesulfonic acid, p-toluenesulfonic acid, hydrochloric acid and trifluoroacetic acid. They afforded a mixture of the ring-opened poly(keto ether) and 3(2H)-dihydrofuranone derivative. Both the methylene group and oxygen atom of 1,3-dioxolane ring were participated in the reaction with cationic catalyst. The contents of the polymer and cyclization product were variable according to the acid strength of the cationic catalysts.
Page
1433 - 1436
Full Text
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