PREPARATION OF META-ARYLOXY-BENZALDEHYDES

    公开(公告)号:KR810001279B1

    公开(公告)日:1981-10-10

    申请号:KR770000031

    申请日:1977-01-10

    Abstract: Title compds. useful as intermediates for insecticide, were prepd. by reaction of the mixt. of metha-aryloxy-benzyl and-benzal halide. and aq. NH3, HCHO or hexamethylenetetramine followed by hydrolysis at pH 3-6.5 in the presence of CH3COOH or inorganic acid. Thus the mixt. of 3-phenoxybenzyl bromide and 3-phenoxybenzal bromide which were prepd. by reaction of 3-phenoxytoluene with Br2, was mixed with hexa methylenetetramine and H2O. The mixt. was maintanined at 105oC 4hr under refluxing and was hydrolysed with conc. HCl to give metha-phenoxy-benzaldehyde.

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