Abstract: | By ion cyclotron resonance it is found that various substituted cy clopropanes after ionization react with ammonia to give products which allow identification of the degree and kind ofsubstitution on the cyclopropl ring. For example, cyclopropyle reacts to give [CH2NH2]+ (m/e 30), methylcyclopropane gives [CH2NH2]+ (m/e 30) and the ethyl substituted [CH(C2H3)NH2]+ (m/e 44) and ethylopropane gives [CH2NH2]+ (m/e 30) and the ethyl substituted [CH(C2H5)NH2]+ (m/e 58). It is suggested that reactions of stable molecular ions with reagent neutrals may be a source of highly specific structural information for organic compounds. |