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Cross-metathesis, a versatile synthetic methodology for the construction of alkenyl phosphine oxides and bis-phosphine oxides

✍ Scribed by F. Bisaro; V. Gouverneur


Book ID
104254394
Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
100 KB
Volume
44
Category
Article
ISSN
0040-4039

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✦ Synopsis


Substituted vinyl and allyl phosphine oxides have been prepared by olefin cross-metathesis providing exclusive E olefin stereochemistry. The methodology has been successfully extended to the preparation of various bis-phosphine oxides.


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1,6-Dihydrophosphinine I -oxides with 4-chloro-3(or 5)-methyl substituents give cycloadducts with dimethyl acetylenedicarboxylate having the 2-phosphabicyclo[2.2.2]octa!-5,7-diene ring system that can be fragmented easily on irradiation with ultraviolet light (254 nm). The phosphorus-containing brid