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Protection carbonyl groups

The oxidation of dihetarylethene 44 with m-chloroper-benzoic acid (m-CPBA) in CH2CI2 afforded 1,1-dioxide 67 (06T5855, 073173, 08CC4622, 09JMC97) in yields up to 90% in the case of the 6-acetyl derivative, the yield of bis-sulfone 68 was only 35% (06T5855) because of a Baeyer-ViUiger oxidation side reaction of the carbonyl group. Protection of the latter as the dioxolane derivative made it possible to increase the yield of 69 to 72% (Scheme 21). [Pg.16]

Acetalization (see Addition reactions to carbonyl groups, Protection of aldehydes and ketones)... [Pg.353]

Carbanions derived from aldehydes or a-dicarbonyl compounds, with one of the carbonyl groups protected as a dimethyl acetal, also react with o-iodoanilines to give indoles319. [Pg.1461]

Bis(trifluoromethyl)oxazol-5(2//)-ones are carbonyl-group protected, carboxyl-group activated, a-oxoacid derivatives that undergo reaction with benzene-1,2-diamine to yield quinoxa-lin-2(1 7)-one or its 3-alkyl- or 3-aryl-substituted derivatives. ... [Pg.207]


See other pages where Protection carbonyl groups is mentioned: [Pg.551]    [Pg.58]    [Pg.551]   
See also in sourсe #XX -- [ Pg.210 , Pg.211 ]

See also in sourсe #XX -- [ Pg.210 , Pg.211 ]




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1,3-Oxathiolanes carbonyl group protection

1.3- Dioxanes carbonyl group protection

1.3- Dioxanes, to protect carbonyl groups

1.3- Dioxolanes carbonyl group protection

1.3- Dithianes carbonyl group protection

4- -1,3-dioxolane protect carbonyl groups

4- -l,3-dioxolane, to protect carbonyl groups

4- -l,3-dioxolanes, to protect carbonyl groups

5- -l,3-dioxanes, to protect carbonyl groups

Acetals and ketals to protect carbonyl groups

Acetals and ketals, acyclic to protect carbonyl groups

Acetals and ketals, cyclic monothio, to protect carbonyl groups

Acetals and ketals, cyclic to protect carbonyl groups

Acetals as carbonyl-protecting groups

Acetals carbonyl group protection

Acetals, bis carbonyl group protection

Acetals, bis carbonyl group protection removal

Bis acetals and ketals protect carbonyl groups

Carbonyl compounds protecting groups

Carbonyl-protecting groups, acetals

Common carbonyl protecting groups

Cyanohydrins carbonyl group protection

Daunomycin, 11-deoxysynthesis carbonyl group protection

Dibenzyl acetals and ketals, to protect carbonyl groups

Diethyl acetals and ketals, to protect carbonyl groups

Dithianes carbonyl protecting group

Dithioacetals carbonyl group protection

Dithioketals carbonyl group protection

Dithiolanes carbonyl group protection

Enol ethers to protect carbonyl groups

Hydrazones carbonyl group protection

Imine derivatives to protect carbonyl groups

Ketals carbonyl group protection

O-Methyl-S-phenyl acetals and ketals protect carbonyl groups

O-Tetrahydropyranyl cyanohydrins protect carbonyl groups

Oximes carbonyl group protection

Oximes to protect carbonyl groups

Protection carbonyls

Protection for the Carbonyl Group

Protection of Carbonyl Groups in Aldehydes and Ketones

Protection of carbonyl groups

Protective groups carbonyl compounds

Protective groups for carbonyl compounds

Reactivity charts to protect carbonyl groups

Subject carbonyl group protection

Substituted methylene derivatives protect carbonyl groups

Sulfur-containing derivatives to protect carbonyl groups

Thiazolidine derivatives to protect carbonyl groups

Tipson-Cohen reaction carbonyl group protection

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