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Reactions of alpha -aminonitriles. III. Reactions of alpha -aminonitriles and Grignard reagents. Effect of the degree of branching and chain length on the course of the reactions

Thies, Heinrich ; Schönenberger, Helmut ; Qasba, P. K.


The reactions of the 4 isomeric butylmagnesium chlorides with alpha -piperidinoacetonitrile (I) and 4 of its alpha -substituted derivs. of general formula II were studied. I underwent adduct formation and dimerization, to give isomeric butyl piperidinomethyl ketones (III) and the dimer 3-amino-2,3-dipiperidinocrotononitrile (IV). The other compds. underwent Grignard exchange to give V (R2 = ...


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