乙醛和怎么溴反应?乙酸反应吗?
1个回答

乙醛和溴反应,有类似碘仿反应第一步.

CH3CHO+3Br2=CBr3CHO+3HBr

也能控制低温,只发生一步取代.

CH3CHO+Br2=CH2BrCHO+HBr

和酸性溴水反应:CH3CHO+Br2+H2O=CH3COOH+2HBr

碱性条件溴仿反应.

CH3CHO+3Br2=CBr3CHO+3HBr

CBr3CHO+NaOH…CHBr3+HCOONa

乙酸不和溴反应,但是有红磷催化可以发生一取代反应.

CH3COOH+Br2…红磷…CH2BrCOOH+HB