| Cyclopropanation of 1, 1-Dichloro-4-methyl-1,3-pentadiene with Diazoacetate |
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| 摘 要： | DuetoitswideappIicationasakeyintermediateofvariouskindsofeffectivepyrethroids,thesynthesisof3(2,2-dichlorovinyl)-2,2-dimethy(III)hasattractedmuchattentionI1-3J.Severalsyntheticmethodshavebeenreportedandsomehavebeenindustrialized.However-comparedwiththegreatamountofliteratUtreusingothermethodstosynthesizelll.onlyafewworkswerereportedaboutcyclopropanationofl,l-dichloro-4-methyl-l-3-pentadiene(I)withdiazoacetate(II),andtheirchemicaIyieldswererelativel}Io.l'~leventhoughthiskindofreactiOI1wasv…
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