反应详情

By the method of Example I-B, 43.6 g of methoxybenzaldoxime in 510 ml of ether was treated with 21.0 g of nitrosyl chloride. After removal of the ether, the product oil was triturated with benzene-hexane and crystallized from benzene-hexane. The filtrate from the crystallization was concentrated to about one-third of its original volume and placed in the refrigerator. The solid which formed and the first crop of crystals were combined and recrystallized from hexane-ether to give 13.2 g of 4-methoxybenzohydroximoyl chloride, m.p. 87.5°-89.5°. The ir spectrum was consistent with the assigned structure.

1. customAfter removal of the ether
2. customthe product oil was triturated with benzene-hexane
3. customcrystallized from benzene-hexane
4. customThe filtrate from the crystallization
5. concentrationwas concentrated to about one-third of its original volume
6. customThe solid which formed
7. customrecrystallized from hexane-ether