PYRROLE CHEMISTRY: III. FRIEDEL-CRAFTS ISOPROPYLATION OF METHYL 2-PYRROLECARBOXYLATE
Open Access
- 1 June 1964
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 42 (6) , 1279-1287
- https://doi.org/10.1139/v64-200
Abstract
The reaction between isopropyl chloride and methyl 2-pyrrolecarboxylate catalyzed by aluminum chloride has been investigated. From the reaction mixture 4-isopropyl-, 5-isopropyl-, and 4,5-diisopropyl-2-esters have been isolated and identified. It has been found that while the 4-isopropyl-2-ester rearranged to 5-isopropyl-2-ester under alkylation conditions, neither the latter nor the 4,5-diisopropyl-2-ester underwent any change. Some suggestions as to the course of the reaction are made.Keywords
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