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Alkenes by Wittig reaction

Benzyl- and methyltriarylphosphonium salts bound to 2% and 8% cross-linked, and to 20% cross-linked macroporous, polystyrene undergo Wittig reactions in good yield with both aldehydes and ketones. The Wittig reaction has been carried out under gas-liquid phase-transfer catalytic conditions using solid potassium carbonate as the base. An advantage of the procedure is that the alkene product separates from the phosphine oxide. Unprotected phenolic aldehydes can be converted into alkenes by Wittig reactions provided two moles of base are used. ... [Pg.225]

See other pages where Alkenes by Wittig reaction is mentioned: [Pg.1242]    [Pg.313]   
See also in sourсe #XX -- [ Pg.111 , Pg.112 , Pg.113 , Pg.114 , Pg.115 , Pg.116 , Pg.117 , Pg.118 ]

See also in sourсe #XX -- [ Pg.111 , Pg.112 , Pg.113 , Pg.114 , Pg.115 , Pg.116 , Pg.117 , Pg.118 ]

See also in sourсe #XX -- [ Pg.69 , Pg.70 , Pg.71 , Pg.72 , Pg.73 ]

See also in sourсe #XX -- [ Pg.95 , Pg.96 , Pg.97 , Pg.98 , Pg.99 , Pg.100 , Pg.101 ]



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