Flash vacuum pyrolysis of substituted pyridine N-oxides and its application to syntheses of heterocyclic compounds

A Ohsawa, T Kawaguchi, H Igeta

Index: Ohsawa, Akio; Kawaguchi, Takayuki; Igeta, Hiroshi Journal of Organic Chemistry, 1982 , vol. 47, # 18 p. 3497 - 3503

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Citation Number: 18

Abstract

C, R= 3-CH, d, R 2 4-CH3 FVP of la, IC, and Id at 650" C gave only the deoxygenated analogues 2a, 2c, and 2d, with 60-91% of the starting materials recovered. At 800" C these same products were accompanied by unidentified low molecular weight products: with almost complete conversion of starting materials. FVP of Id at 800 OC also gave 22% of 2- cyanomethyl-4-picoline (3), formed by a pathway that c H3

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