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W(CO) 5 (L)-Catalyzed Endo-Selective Cyclization of Allenyl Silyl Enol Ethers: An Efficient Method for the Cyclopentene Annulation onto α,β-Unsaturated Ketones

✍ Scribed by Miura, Tomoya; Kiyota, Koichi; Kusama, Hiroyuki; Lee, Kooyeon; Kim, Hyunseok; Kim, Sunggak; Lee, Phil Ho; Iwasawa, Nobuharu

Book ID: 126024125
Publisher: American Chemical Society
Year: 2003
Tongue: English
Weight: 82 KB
Volume: 5
Category: Article
ISSN: 1523-7060
DOI: 10.1021/ol034365a

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## Abstract For Abstract see ChemInform Abstract in Full Text.

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## Abstract An efficient method for the annulation of five‐ and six‐membered rings onto α,β‐enones is described __via__ gold‐catalyzed 5‐ and 6‐__exo__‐__dig__ selective cyclizations of alkynyl silyl enol ethers.

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ChemInform Abstract: A Novel Reaction for Annulation onto α,β-Unsaturated Ketones: W(CO)5×L Promoted exo- and endo-Selective Cyclizations of ω-Acetylenic Silyl Enol Ethers Prepared by 1,4-Addition of Propargyl Malonate to Enones.

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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v