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5-2-Tetrahydropyranyl monothioacetals

An S-2-tetrahydropyranyl monothioacetal is oxidized to a disulfide by iodine or thiocyanogen, (SCN)2- ... [Pg.291]

An. S-tetrahydropyranyl monothioacetal is stable to 4 A HCI/CH3OH, 0° and to reduction with Na/NH3. (An O-tetrahydropyranyl acetal is cleaved by 0.1 AHCl,... [Pg.472]

With Metal-Ammonia. Virtually no published work has appeared on the cleavage of monothioacetals or dithioacetals with metal-ammonia combinations although one assumes that both types of compounds can be cleaved with this reagent. Holland and Cohen [109] found that ethyl 2-tetrahydropyranyl sulphide was cleaved in 30 min with sodium in ammonia and surest that enough selectivity can be achieved to form (35) in low yield. [Pg.273]

See other pages where 5-2-Tetrahydropyranyl monothioacetals is mentioned: [Pg.437]    [Pg.732]    [Pg.462]    [Pg.671]    [Pg.1017]    [Pg.437]    [Pg.472]    [Pg.473]    [Pg.732]    [Pg.462]    [Pg.671]    [Pg.671]    [Pg.1017]    [Pg.395]    [Pg.271]    [Pg.277]    [Pg.279]   


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Monothioacetalization

Tetrahydropyranylation

Tetrahydropyranylations

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