The synthesis of 4??methyl??2??pyrrolidones and 3??methyl??1??pyrrolidines and their mass spectral study

…, CA Kingsbury, NH Cromwell

Index: Lin, Tay-yean; Kingsbury, Charles A.; Cromwell, Norman H. Journal of Heterocyclic Chemistry, 1984 , vol. 21, p. 1871 - 1875

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Citation Number: 2

Abstract

Abstract A number of 1-alkyl-4-methyl-2-pyrrolidones have been prepared from methyl 4- alkylamino-3-methyl butenoates. The corresponding 1-alkyl-3-methyl-pyrrolidines are obtainable by the reduction of the pyrrolidones with lithium aluminum hydride. The mass spectra of pyrrolidones and pyrrolidines have been studied. Three different mechanisms which lead to the base peak have been proposed.