Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles

A two-stage “tandem strategy” for the synthesis of indoles with a high level of substitution on the six-membered ring is described. Benzannulation based on the reaction of cyclobutenones with ynamides proceeds via a cascade of four pericyclic reactions to produce multiply substituted aniline derivat...

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Main Authors: Lam, Tin Yiu, Wang, Yu-Pu, Danheiser, Rick Lane
Other Authors: Massachusetts Institute of Technology. Department of Chemistry
Format: Article
Language:en_US
Published: American Chemical Society (ACS) 2014
Online Access:http://hdl.handle.net/1721.1/88725
https://orcid.org/0000-0002-9812-206X
https://orcid.org/0000-0001-5002-2230
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author Lam, Tin Yiu
Wang, Yu-Pu
Danheiser, Rick Lane
author2 Massachusetts Institute of Technology. Department of Chemistry
author_facet Massachusetts Institute of Technology. Department of Chemistry
Lam, Tin Yiu
Wang, Yu-Pu
Danheiser, Rick Lane
author_sort Lam, Tin Yiu
collection MIT
description A two-stage “tandem strategy” for the synthesis of indoles with a high level of substitution on the six-membered ring is described. Benzannulation based on the reaction of cyclobutenones with ynamides proceeds via a cascade of four pericyclic reactions to produce multiply substituted aniline derivatives in which the position ortho to the nitrogen can bear a wide range of functionalized substituents. In the second stage of the tandem strategy, highly substituted indoles are generated via acid-, base-, and palladium-catalyzed cyclization and annulation processes.
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spelling mit-1721.1/887252022-10-03T08:25:53Z Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles Lam, Tin Yiu Wang, Yu-Pu Danheiser, Rick Lane Massachusetts Institute of Technology. Department of Chemistry Danheiser, Rick Lane Lam, Tin Yiu Wang, Yu-Pu Danheiser, Rick Lane A two-stage “tandem strategy” for the synthesis of indoles with a high level of substitution on the six-membered ring is described. Benzannulation based on the reaction of cyclobutenones with ynamides proceeds via a cascade of four pericyclic reactions to produce multiply substituted aniline derivatives in which the position ortho to the nitrogen can bear a wide range of functionalized substituents. In the second stage of the tandem strategy, highly substituted indoles are generated via acid-, base-, and palladium-catalyzed cyclization and annulation processes. National Institutes of Health (U.S.) (Grant GM28273) National Science Foundation (U.S.) (Grant CHE-1111567) Merck Research Laboratories Boehringer Ingelheim Pharmaceuticals Eli Lilly and Company (Graduate Fellowship) Massachusetts Institute of Technology. Dept. of Chemistry (C.P. Chu and Y. Lai Fellowship Fund) 2014-08-15T17:01:41Z 2014-08-15T17:01:41Z 2013-09 Article http://purl.org/eprint/type/JournalArticle 0022-3263 1520-6904 http://hdl.handle.net/1721.1/88725 Lam, Tin Yiu, Yu-Pu Wang, and Rick L. Danheiser. “Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles.” The Journal of Organic Chemistry 78, no. 18 (September 20, 2013): 9396–9414. https://orcid.org/0000-0002-9812-206X https://orcid.org/0000-0001-5002-2230 en_US http://dx.doi.org/10.1021/jo401635c Journal of Organic Chemistry Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) Prof. Danheiser via Erja Kajosalo
spellingShingle Lam, Tin Yiu
Wang, Yu-Pu
Danheiser, Rick Lane
Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles
title Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles
title_full Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles
title_fullStr Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles
title_full_unstemmed Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles
title_short Benzannulation via the Reaction of Ynamides and Vinylketenes. Application to the Synthesis of Highly Substituted Indoles
title_sort benzannulation via the reaction of ynamides and vinylketenes application to the synthesis of highly substituted indoles
url http://hdl.handle.net/1721.1/88725
https://orcid.org/0000-0002-9812-206X
https://orcid.org/0000-0001-5002-2230
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AT danheiserricklane benzannulationviathereactionofynamidesandvinylketenesapplicationtothesynthesisofhighlysubstitutedindoles