Diazomethane Addition to 5, 6-Disubstituted 2-Norbornene Derivatives

  • Yanagida Yuji
    Department of Applied Chemistry, Faculty of Engineering, Osaka University
  • Yokota Toshio
    Department of Applied Chemistry, Faculty of Engineering, Osaka University
  • Nomura Masakatsu
    Department of Applied Chemistry, Faculty of Engineering, Osaka University
  • Kikkawa Shoichi
    Department of Applied Chemistry, Faculty of Engineering, Osaka University

Bibliographic Information

Other Title
  • 5,6-二置換 2-ノルボルネン類へのジアゾメタンの付加反応
  • 5,6‐二置換2‐ノルボルネン類へのジアゾメタンの付加反応

Search this article

Description

1, 3-Dipolar cycloaddition reaction of diazomethane to various 5, 6-disubstituted 2-norbornenes were investigated. All the adducts obtained were 1-pyrazoline derivatives. In the reaction of trans-5, 6-dicyano(or dicarbomethoxy)-2-norbornene, two isomers were isolated and the structures were determined by NMR analysis.<BR>Kinetic study in diethyl ether showed that the rate increased in the order, exo-cis > trans > endo-cis. And electron withdrawing substituents increased the rates. The field effect was suggested to explain these results.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1975 (4), 652-656, 1975-04-10

    The Chemical Society of Japan

Details 詳細情報について

Report a problem

Back to top