Sodium Tungstate Dihydrate-III

The epoxidation of 1,4-bis(allyloxy)butane in the presence of sodium tungstate dihydrate and orthophosphoric acid gives 1-allyloxy-4-glycidoloxybutane and 1,4-bis(glycidoloxy)butane under phase transfer conditions, using 30% hydrogen peroxide as oxidant. Methyltrioctylammonium chloride (Aliquat 336) was used as phase transfer catalyst (PTC). Sodium tungstate dihydrate can be used also as catalyst in the epoxidation of terpenes, such as limonene, geraniol, nerol or 3-carene, using a phosphate buffer solution of H3PO4/NaH2PO4.


 

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