Interrupting base-mediated benzofuran ring transformation with michael acceptors

TitleInterrupting base-mediated benzofuran ring transformation with michael acceptors
Publication TypeJournal Article
Year of Publication2017
AuthorsSrinivas, K, Sharma, R, Ramana, CV
JournalJournal of Organic Chemistry
Volume82
Issue18
Pagination9816-9823
Date PublishedSEP
Type of ArticleArticle
ISSN0022-3263
KeywordsAcyl Benzylic Bromides, Beta-Ketoaldehydes, Efficient Synthesis, Ortho-Hydroxybenzyl Ketones, Phenols, Position, Precursors, Sur Le Benzofuranne, Transposition
Abstract

A simple two-stage approach for the synthesis of 3-(2-arylbenzofuran-3-yl)propanoates and propanamides has been developed employing simple acrylates and acrylamides and readily available 3-aroylbenzofurans. The key step of this process involves a base-mediated ring opening of the 3-aroylbenzofurans and subsequent Michael addition of the resulting 1,3-dicarbonyl intermediate with acrylate/acrylamide, followed by the deformylation in one-pot. The resulting products undergo an acid-mediated dehydrative cyclization to arrive at these targets.

DOI10.1021/acs.joc.7b01267
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)

4.785

Divison category: 
Organic Chemistry

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