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Diethyl allylthiomethylphosphonate

CLAISEN REARRANGEMENT Diethyl allylthiomethylphosphonate. Triethyl orthoacetate. [Pg.178]

WITTIG REAGENTS 2,2-Diethoxyvinyli-denetriphenylphosphorane. Diethyl allylthiomethylphosphonate. Ethyl-idenetriphenylphosphorane. Fluoro-methylenetriphenylphosphorane. [Pg.181]

Corey has reported a novel method for the introduction of two alkyl appendages at the carbonyl carbon of ketones. Ketones react with the anion of diethyl allylthiomethylphosphonate (155) to give vinyl allyl sulphides such as (156) heating in the presence of mercury(ii) oxide induces a thio-Claisen rearrangement to yield the aldehyde (157), which can be further elaborated by various oxidation-reduction sequences to give, for example, the spiro-enone (158). [Pg.133]

See other pages where Diethyl allylthiomethylphosphonate is mentioned: [Pg.50]    [Pg.50]   
See also in sourсe #XX -- [ Pg.94 ]



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