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The influence of manganese(II) chloride on the reaction between Grignard compounds and Schiff bases

Schönenberger, Helmut ; Thies, Heinrich ; Zeller, A. ; Borah, K.


The reaction of benzylidenebutylamine with iso-PrMgI gave alpha -phenyl-alpha -butylamino-beta -methylpropane and small amts. of benzylbutylamine. In the presence of MnCl2, meso- and dl-N,N'-dibutyl-alpha ,alpha -diphenylethylenediamine were formed as further by-products. The yield of dimeric by-product was strongly dependent on the type of halogen in the Grignard compd. Thus, in the presence of ...


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