ISSN:
0021-8383
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Kinetical Investigations on Radical Initiated Fragmentation of Orthoformiates of 2,2,3,3,4,4,5,5-Octafluoropentan-1-oltert.-Butoxy radicals abstract the methin hydrogen atom on orthoesters 1 of 2,3,3,4,4,5,5-octafluoropentan-1-ol, and the radicals 2 thus formed fragmente at 130°C into dialkylcarbonates 3. Due to their acceptor properties the fluoroalkyl substituents influence the velocity of the hydrogen abstraction reaction. On the contrary, no influence of these substituents on the rate of the fragmentation step has been measured. With 2-fluoroalkyl substituted 1,3-dioxolanes the radical induced fragmentation leads to ring-opened carbonates, which are the major products, and ethylene carbonate.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prac.19903320315
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