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Stereo-controlled synthesis of styrylphosphines and their oxides or sulfides using phosphonium diylides

✍ Scribed by M Taillefer; H.J Cristau

Book ID: 104260029
Publisher: Elsevier Science
Year: 1998
Tongue: French
Weight: 255 KB
Volume: 39
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(98)01758-4

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✦ Synopsis

Lithium dimethyldiphenylphosphonium diylide reacts with electrophiles such as Ph2PCI, Ph2P(O)CI or Ph2P(S)CI to give monoylide intermediates allowing by reaction with benzaldehyde the synthesis of the styrylphosphines or the corresponding oxides or sulfides. This efficient one-pot method permits at choice the selective synthesis of each isomer Z or E and corroborates further the isomeric identification of the styrylphosphines.

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