发明名称 |
PHENYLETHL O-METHYLCINNAMATE, A PROCESS FOR PREPARATION AND A FRAGRANCE COMPOSITION CONTAINING SAME |
摘要 |
The invention relates to phenylethyl o-methylcinnamate and a process for its preparation. Phenylethyl o-methylcinnamate is prepared by, first, alkylating ethyl acetoacetate with o-methylbenzyl chloride in the presence of a phase transfer catalyst to yield 2-(o-methylbenzyl)-acetoacetate. Thereafter the 2-(o-methylbenzyl)-acetoacetate yielded in the alkylating step is halogenated to yield ethyl 2-halo-2-(o-methylbenzyl)-acetoacetate. This is followed by degarding the ethyl 2-halo-2-(o-methylbenzyl)-acetoacetate acid. Finally the o-methylcinnamic acid obtained in the degarding step is esterified with 2-phenylethanol into phenylethyl o-methylcinnamate. A fragrance composition utilizing phenylethyl o-methylcinnamate is also disclosed.
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申请公布号 |
US5066640(A) |
申请公布日期 |
1991.11.19 |
申请号 |
US19890350577 |
申请日期 |
1989.05.11 |
申请人 |
CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE GMBH |
发明人 |
VOSS, ERDMUTHE;MOSCHINSKY, WERNER;HOFMANN-MORITZ, DORIS |
分类号 |
C07C57/42;C11B9/00 |
主分类号 |
C07C57/42 |
代理机构 |
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主权项 |
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地址 |
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