发明名称 |
INTERMEDIATE IN THE PREPARATION OF CYCLOPROPANECARBOXYLATE ESTERS |
摘要 |
Novel intermediate in the manufacture of pyrethroid insecticides has the following formula The compound preferably has the same stereoisomeric form as the cyclopropane ring in (+)-3-carene. The novel intermediate can be prepared by a process which comprises oxidising 2-(2-hydroxymethyl-3,3-dimethylcyclopropyl)ethanal dimethyl acetal, for example by means of a chromium trioxide-pyridine complex of a pyridinium chlorochromate. The starting material is preferably derived from (+)-3-carene. |
申请公布号 |
AU4898379(A) |
申请公布日期 |
1980.01.24 |
申请号 |
AU19790048983 |
申请日期 |
1979.07.17 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
JOHANNES VAN BERKEL;HENDRIK CORNELIS KELDERMAN |
分类号 |
B01J31/00;C07B61/00;C07C45/00;C07C45/29;C07C45/30;C07C47/37;C07C67/00 |
主分类号 |
B01J31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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