The Willgerodt Reaction in the Heterocyclic Series. III. Temperature Studies with Thienyl Ketones
JA Blanchette, EV Brown
文献索引:Blanchette; Brown Journal of the American Chemical Society, 1951 , vol. 73, p. 2779 Journal of the American Chemical Society, 1952 , vol. 74, p. 1066
2-Thienyl methyl ketone has been found to undergo the Willgerodt reaction with the yield dependent on the operation temperature. Temperature studies with 2-thienyl methyl ketone, 2, 5-dimethyl-3-thienyl methyl ketone and 3, 4-dimethyl-2-thienyl methyl ketone have shown that the yields of the corresponding amides decrease sharply above 160'. When these amides were subjected to the conditions of the Wiglgerodt reaction at a temperature of ...