作者:G. Paul Savage、Gregory T. Wernert
DOI:10.1071/ch05189
日期:——
The relatively hindered 2,2-bis(benzotriazol-1-yl)acetonitrile oxide was prepared in situ from the precursor hydroximinoyl chloride, and was allowed to react with dipolarophiles to give rise to several isoxazoles. The benzotriazole substituents acted as steric auxiliaries to prevent unwanted dimerization of the nitrile oxide to the furoxan by-product.
相对受阻的 2,2-双(苯并三唑-1-基)氧化乙腈由前体羟肟酰氯原位制备,并与亲偶极试剂反应生成几种异恶唑。苯并三唑取代基充当空间助剂以防止氧化腈不希望地二聚成呋喃副产物。