1, 3??dipolar addition of pyridine N??imine to acetylenes and the use of C??13 NMR in several structural assignments

PL Anderson, JP Hasak, AD Kahle…

Index: Anderson, Paul L.; Hasak, James P; Kahle, Alicia D.; Paolella, Nicholas A.; Shapiro, Michael J. Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 1149 - 1152

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Citation Number: 34

Abstract

Abstract Addition of pyridine-N-imine to a variety of acetylenic mono-(Scheme I) and di- (Scheme II) carboxylic ester dipolarophiles was carried out. Several of the 3-azapyrrocoline esters obtained were further converted into acids, amides and hydrazides as shown in Schemes I and II.