Solvent-Free Deprotection under Microwave Irradiation

Solvent-Free Deprotection under Microwave Irradiation... [Pg.402]

Using day supported ammonium nitrate (dayan), selective deprotection of methoxyphenyl methyl (MPM) ether has been achieved recently using microwave irradiation in solvent-free conditions (Scheme 6.15) [56]. The same reagent has been used for the cleavage of tetrahydropyranyl (THP) ethers. A similar selective preparation and deavage of THP ethers has been achieved under microwave irradiation catalyzed by iodine [57] or neat reaction in an ionic liquid [28],... [Pg.190]

Meshram et al. (1999b) also observed the deprotection of a variety of tetrahy-dropyranyl ethers (THP), acetonides and acetals into their parent compounds using clayan under microwave irradiation. The ecofriendly nature of the reagent and solvent-free conditions are the important features of the procedure. [Pg.345]

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