General Procedure forCleavage of Ether with BBr3. Aweighed quantity of the ether (usually 15 to 20 g) is introduced into the reactionflask and cooled in an ice-bath. The calculated quantity of boron ...

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Although natural sources of compounds that contain the oxazolidin-2-one nucleus are very rare, 5 Kakeya et al. 6 were able to isolate a novel compound belonging to this class, ...

I Departamento de Biologia, Universidade Estadual de Maringá, 87025-500 Maringá - PR, Brasil II Departamento de Química, Universidade Estadual de Maringá, 87025-500 Maringá - PR, Brasil Fruits of M.