Synthesis of Furan Derivatives. LXXXVII. Kinetic Studies of the Thermal Curtius Rearrangement of 2-Benzofuroyl Azide and Related Compounds

H SAIKACHI, T KITAGAWA, A NASU…

Index: Saikachi; Kitagawa; Nasu; Sasaki Chemical and Pharmaceutical Bulletin, 1981 , vol. 29, # 1 p. 237 - 244

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Citation Number: 9

Abstract

The kinetics of the thermal Curtius rearrangement of benzoheteroaroyl azides, ie, 2- benzofuroyl azide (2), 2-benzothenoyl azide (4), 2-indolecarbonyl azide (6), 2-, 3-, 4-, 5-, 6-, and 7-quinolinecarbonyl azides (8, 10, 12, 13, 14, and 15), and 1-and 2-naphthoyl azides (17 and 18), in toluene were studied by infrared spectrophotometry to determine how the annelation of the benzene ring to side b of 2-furoyl, 2-thenoyl, and 2-pyrrolecarbonyl ...