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Alternate methoxy source

In an alternate synthesis, trimethyl orthoformate (TMOF) is used as the methoxy source, as shown in equation 7 below ... [Pg.479]

A solution of 15 g 3,4,5-trimethoxy propiophenone in a little absolute alcohol is stirred in, under warming in a bath (of saturated chlorine calcium solution), alternating with larger pieces sodium and alcohol, whereby at least 75 g sodium and 600 ccm absolute alcohol is necessary. After the sodium disappears in the mixture, is diluted with water (2L), acidified with hydrochloric acid, the alcohol distilled and then extracted with ether. Evaporation of the ether leaves 9 g of Divarin dimethylether. Source Asahina 1936 For use of selenium dioxide to crack off para methoxy group see page 180 in Amphetamine Syntheses Industrial. [Pg.73]

See other pages where Alternate methoxy source is mentioned: [Pg.90]    [Pg.114]    [Pg.60]    [Pg.17]    [Pg.195]    [Pg.347]    [Pg.33]    [Pg.298]    [Pg.71]    [Pg.85]    [Pg.245]   
See also in sourсe #XX -- [ Pg.479 ]



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