4.4 Article

Photochemical behaviors of tetraphenyldiphosphine in the presence of alkynes

Journal

TETRAHEDRON LETTERS
Volume 47, Issue 23, Pages 3919-3922

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2006.03.165

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Under an atmosphere of nitrogen, the photoinduced reaction of tetraphenyldiphosphine (1) with alkynes (2) generates vicinal bisphosphinated alkenes (3) as air-sensitive compounds, which can be isolated by treatment with elemental sulfur. A novel E to Z isomerization of 3 is revealed to take place upon continuous photoirradiation. (c) 2006 Elsevier Ltd. All rights reserved.

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