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Methyl lithocholate tosylate

It has been claimed that the elimination of tosylates of 3a-alcohols in 5jS-series gives 3-oleflns with high selectivity. However, the homogeneity of these products is questionable, in view of recent findings concerning the ehmination of 3-chloro compounds (see below) and Fieser s results with the elimination of methyl lithocholate tosylate (ref. 232, cf. ref. 233). Neutral alumina may also be used to effect elimination of tosylates of 3j5-alcohols if the alumina is pretreated with potassium hydroxide the inverted alcohol is the predominant product. [Pg.329]

Methyl 3a,6a-dihydroxycholanate, 240 1-Methylestrone 3-methyl ether, 10, 27 4b/3-Methyl-7-ethylenedioxy-1,2,3,4, 4a ,4b/3,5,6,7,8,10,1 Oaa-dodecahydro-phenanthrene-1 /3,4/3-diol, 236 14C-Methyl iodide, 211 ds-Methyl iodide, 210, 214 Methyl lithocholate tosylate, 329 1-Methyl-19-nortestosterone, 27 6a-Methylprednisolone, 410 6a-Methylprednisolone BMD, 410 16/3-Methylprednisone, 87 18-Methylpregn-4-ene-3/3,17a,20f-triol, 243 20-Methylpregn-5-en-3/3-ol, 415 17a-Methylpregnenolone acetate, 48 17a-Methyltestosterone, 438 16/3-Methyl- 11a,17a,21 -trihydroxy- 5 /3-pregnane-3,20-dione 21-acetate, 299, 300 20-Methyl-3/3-trityloxypregn-5-ene, 415 3/3-Methoxycholestane, 136 1-Methoxycyclohexene, 18 3-Methoxyestra-3,5(10)-diene, 18, 27... [Pg.262]


See also in sourсe #XX -- [ Pg.329 ]




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