Correction to Concise Synthesis of the CDE Ring System of

Addition/Correction pubs.acs.org/joc

Correction to Concise Synthesis of the CDE Ring System of Tetrahydroisoquinoline Alkaloids Using Carbophilic Lewis Acid-Catalyzed Hydroamidation and Oxidative Friedel−Crafts Cyclization Shingo Obika, Yoshizumi Yasui, Reiko Yanada, and Yoshiji Takemoto* J. Org. Chem. 2008, 73, 5206−5209. DOI: 10.1021/jo800898k. Upon further investigation of the platinum- and gold-catalyzed hydroamidation of alkynylamides described in this paper, we found that the reactions shown in Schemes 2 and 4 only afford 7-endo products, rather than the 6-exo isomers we originally reported.

Published: February 10, 2012 © 2012 American Chemical Society

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dx.doi.org/10.1021/jo300216y | J. Org. Chem. 2012, 77, 2578−2578