期刊
TETRAHEDRON LETTERS
卷 47, 期 32, 页码 5669-5672出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2006.06.014
关键词
intermolecular Pauson-Khand reaction; estrone; steroids
An expedient synthetic route to E-ring extended estrone derivatives is reported. Estrone-derived cyclopentenones were accessed by an intermolecular Pauson-Khand (PK) cycloaddition. It was found that electron donating and withdrawing substituents in the arylalkyne increased and decreased the yields of PK products, respectively. The stereochemistry of the products was elucidated by X-ray and NMR studies. (c) 2006 Elsevier Ltd. All rights reserved.
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