Helvetica Chimica Acta

Propynal Equivalents and Diazopropyne: Synthesis of All Mono??13C Isotopomers

RA Seburg, JA Hodges, RJ McMahon

Index: Seburg, Randal A.; Hodges, Jonathan A.; McMahon, Robert J. Helvetica Chimica Acta, 2009 , vol. 92, # 8 p. 1626 - 1643

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Citation Number: 3

Abstract

Abstract Mechanistic and spectroscopic investigations of reactive C 3 H 2 hydrocarbons necessitated the preparation of diazopropyne isotopomers bearing mono-13 C substitution at each of the three unique positions. The diazo compounds and their tosylhydrazone precursors were prepared from the mono-13 C isotopomers of propynal (in the form of either the aldehyde or the diethyl acetal). The introduction of 13 C-labeling at either alkyne ...