2,3-cycloethylene-3-methylpentano-5-lactone
    9.
    发明授权
    2,3-cycloethylene-3-methylpentano-5-lactone 失效
    2,3-环丙基-3-甲基戊酸-5-酯

    公开(公告)号:US3697549A

    公开(公告)日:1972-10-10

    申请号:US3697549D

    申请日:1971-06-25

    申请人: ZOECON CORP

    发明人: SIDDALL JOHN B

    CPC分类号: C07D309/32 C07D311/94

    摘要: Synthesis of cis 2-(1''-methyl-2''-isopropenylcyclobutyl)ethanol, a component of the boll weevil sex attractant, and intermediates therefor, in which 5-hydroxypent-2-ynoic acid or ethers thereof is methylated followed by cyclization to yield 3-methylpent-2eno-5-lactone which is irradiated in presence of ethylene to yield 2,3-cycloethylene-3-methylpentano-5-lactone which is cleaved and converted into 2-(1''-methyl-2''isopropenylcyclobutyl)ethanol.

    摘要翻译: 顺式2-(1'-甲基-2'-异丙烯基环丁基)乙醇,铃索象鼻虫性引诱剂的组分及其中间体,其中5-羟基-2-炔酸或其醚被甲基化,随后环化为 得到在乙烯存在下照射的3-甲基戊-2-烯-5-内酯,得到2,3-环亚乙基-3-甲基戊-5-烯酮,将其切割并转化为2-(1'-甲基-2' - 异丙烯基环丁基)乙醇。