Transition‐Metal‐Catalysed Reactions of Diazoesters: Synthesis of Chrysanthemic and Permethric Acid Esters by Cyclopropanation of Conjugated Dienes | Zendy

Demonceau A. | Zendy; Noels A. F. | Zendy; Anciaux A. J. | Zendy; Hubert A. J. | Zendy; Teyssié P. | Zendy

Open Access

Transition‐Metal‐Catalysed Reactions of Diazoesters: Synthesis of Chrysanthemic and Permethric Acid Esters by Cyclopropanation of Conjugated Dienes

Author(s) -

Demonceau A.,

Noels A. F.,

Anciaux A. J.,

Hubert A. J.,

Teyssié P.

Publication year - 1984

Publication title -

bulletin des sociétés chimiques belges

Language(s) - English

Resource type - Journals

ISSN - 0037-9646

DOI - 10.1002/bscb.19840931104

Subject(s) - cyclopropanation , chemistry , carbene , alkoxy group , conjugated system , rhodium , catalysis , transition metal , medicinal chemistry , organic chemistry , diene , polymer , alkyl , natural rubber

Pyrethroid precursors (permethric and chrysanthemic acid esters) are efficiently synthesized by rhodium(II)‐catalysed cyclopropanation of the properly substituted conjugated diene. Reaction selectivities depend on both the catalyst counter‐ion and the diazoester alkoxy‐group (carbene precursor) and are attributed to non‐bonded interactions.

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