Additional o-Phenylenediamines Tested for Vitamin B12 Activity

JP Lambooy, EE Haley

Index: Lambooy; Haley Journal of the American Chemical Society, 1952 , vol. 74, p. 1087

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Citation Number: 7

Abstract

BY KICHOLAS MESSINA AND ELLIS 1'. BROWN During the course of our investigation of the Friedel-Crafts reaction in the thiophene series,'it became necessary to prepare 6, 6- dimethylheptanedione-2, 5 by the hydrolysis and decarboxylation of ethyl a- pinacolonylacetoacetate. The hydrolysis of this substituted ethyl acetoacetate gave some unexpected results when the hydrolyzing agent was boiling 20% potassium carbonate ...