Journal of heterocyclic chemistry

Thermal decomposition of 3, 3, 5??trisubstituted??4, 4??dimethyl??4, 5??dihydro??5??hydroperoxy??3H??pyrazoles: Route to β, γ??unsaturated ketones

AL Baumstark, PC Vasquez

Index: Baumstark, Alfons L.; Vasquez, Pedro C. Journal of Heterocyclic Chemistry, 1991 ,  vol. 28,  # 1  p. 113 - 117

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Citation Number: 14

Abstract

Abstract The thermal decomposition of a series of cyclic α-azo hydroperoxides (3, 3, 5-R 1, R 2, R 3-4, 4-dimethyl-4, 5-dihydro-5-hydroperoxy-3H-pyrazoles; 2a R 1= R 2= R 3= Ph; 2b R 1= R 3= Ph, R 2= Me; 2c R 1= R 3= p-Anisyl, R 2= Me; 2d R 1= R 2= Me, R 3= Ph; 2e R 1= R 3= Me, R 2= Ph), synthesized by oxidation of the corresponding 3, 4-dihydro-2H-pyrazoles, proceeded smoothly with evolution of nitrogen. The relative stability series was found to ...