Enamine Chemistry. II. Reactions with Acetylenedicarboxylates1

KC Brannock, RD Burpitt, VW Goodlett…

Index: Brannock,K.C. et al. Journal of Organic Chemistry, 1963 , vol. 28, p. 1464 - 1468

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Citation Number: 82

Abstract

Method B.-Ethylnylbenzene (27 g., 0.26 mole) and l-isobutenylpiperidine (40 g., 0.29 mole'were combined and heated at 145-150'for 15 hr. Distillation of the reaction mixture through a 6-in. Vigreux column gave, after removal of 15 g. of forerun, 40.5 g.(64%) of 1-(l- isopropyl-3-pheny1-2-propyn-3-yl) piperidine, bp 118-124'at 1.5 mm., n% 1.5393.