Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

4-Methoxybenzyl group ether protection

These reaction conditions do not affect most of the other common hydroxy-protecting groups and the methoxybenzyl group is therefore useful in synthetic sequences that require selective deprotection of different hydroxy groups. 4-Methoxybenzyl ethers can also be selectively cleaved by dimethylboron bromide.182... [Pg.263]

Reduction of benzylic oxygen functional groups with Raney nickel has occasionally been reported, but there are very few examples in the recent literature. Hydrogenolysis over W-2 Raney nickel has been used to selectively remove benzyl ether protection in the presence of a 4-methoxybenzyl protecting group (equation 30)." ... [Pg.963]

In this section, the formation and cleavage of eight protecting groups for alcohols and phenols are presented acetate acetonides for diols benzyl ether para-methoxybenzyl (PMB) ether methyl ether methoxymethylene (MOM) ether ferf-butyldiphenylsilyl (TBDPS) silyl ether and tetrahydropyran (THP). [Pg.189]

See other pages where 4-Methoxybenzyl group ether protection is mentioned: [Pg.158]    [Pg.634]    [Pg.501]    [Pg.11]    [Pg.504]    [Pg.246]    [Pg.240]    [Pg.49]    [Pg.33]    [Pg.317]    [Pg.31]    [Pg.152]    [Pg.248]    [Pg.250]    [Pg.266]    [Pg.270]    [Pg.311]    [Pg.365]    [Pg.179]    [Pg.78]    [Pg.102]    [Pg.111]    [Pg.118]    [Pg.624]    [Pg.228]    [Pg.273]    [Pg.299]    [Pg.371]    [Pg.58]    [Pg.516]    [Pg.182]    [Pg.342]    [Pg.24]    [Pg.145]    [Pg.242]    [Pg.243]    [Pg.244]    [Pg.260]    [Pg.264]    [Pg.305]    [Pg.368]   
See also in sourсe #XX -- [ Pg.6 , Pg.634 ]

See also in sourсe #XX -- [ Pg.634 ]

See also in sourсe #XX -- [ Pg.6 , Pg.634 ]

See also in sourсe #XX -- [ Pg.634 ]



SEARCH



4-Methoxybenzyl ethers

4-Methoxybenzyl group

Ether group

Ethers protection

Methoxybenzyl

Methoxybenzyl protecting group

Protective groups ethers

© 2024 chempedia.info