P-Toluenesulfonylhydrazide → 1-Cyano-1-phenyl-2-ethylcyclopropane

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1-Cyano-1-phenyl-2-ethylcyclopropane was prepared by carrying out a reduction on the corresponding 2-vinylcyclopropane derivative, prepared in accordance with the procedure of Example I, employing tosyl hydrazine. The 1-cyano-1-phenyl-2-vinylcyclopropane (10.14 g) was combined with 22.32 g tosyl hydrazine in 70 cc diglyme and the mixture refluxed with stirring for 1 hour. The reaction mixture was extracted with petroleum ether and, upon distillation, 5.23 g 1-cyano-1-phenyl-2-ethylcyclopropane was obtained. Reduction of the vinyl group was confirmed by the nuclear magnetic resonance spectrum in that there was no absorption at δ5.3. Absence of vinyl absorption was also confirmed by infrared analysis.

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