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Ergosta-5,7,22-trien

C28H440 ergosta-5,7,22-trien-3-ol, (3beta,9beta,10al 474-69-1 25.00 0.9279 2 34812 C29H52 tricosylbenzene 61828-04-4 20-00 0.8544 1... [Pg.290]

A solution of 793 mg (2 mmol) of (22Z)-ergosta-5,7,22-trien-3/J-ol (1) in 14 mL of peroxide-free dioxane is hydrogenated at 760 Torr over ca. 1.2 g of Raney nickel catalyst which has previously been saturated with H2. After 3 h, 105% (51 mL) of the theoretical quantity of H2 has been adsorbed and H2 uptake ceases. The reaction mixture is diluted with CHC13 and the catalyst is removed by filtration through a filter-aid. Concentration under reduced pressure affords nearly pure 2 yield 750 mg (94%). Recrystallization is from CH2CI2/CH3OH mp 173- 176 JC [a] 4-19.3 (c = 2.06, CHC1,). [Pg.965]

VITAMIN D2 FROM ERGOSTEROL (9,10-Secoergosta-5,7,10(19),22-tetraen-3-ol,(3p)-from Ergosta-5,7,22-trien-3-ol,(3p)-)... [Pg.275]

See other pages where Ergosta-5,7,22-trien is mentioned: [Pg.130]    [Pg.261]    [Pg.74]    [Pg.218]    [Pg.160]    [Pg.127]    [Pg.197]    [Pg.233]    [Pg.1428]    [Pg.1733]    [Pg.290]    [Pg.398]    [Pg.357]    [Pg.878]    [Pg.341]    [Pg.342]    [Pg.884]    [Pg.941]    [Pg.145]    [Pg.510]    [Pg.538]    [Pg.251]    [Pg.286]    [Pg.323]    [Pg.671]    [Pg.821]    [Pg.880]    [Pg.1272]    [Pg.300]    [Pg.44]    [Pg.149]    [Pg.210]    [Pg.210]    [Pg.1594]    [Pg.1595]    [Pg.352]    [Pg.352]    [Pg.352]    [Pg.353]    [Pg.353]   
See also in sourсe #XX -- [ Pg.3 , Pg.391 ]



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Ergosta-5,7,22-trien-3-ol,

Ergosterol: Ergosta-5,7,22-trien

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