New Stable<i>N</i>-H Oxaziridines - Synthesis and Reactivity
作者:Sylvain Blanc、Céline A. C. Bordogna、Benjamin R. Buckley、Mark R. J. Elsegood、Philip C. Bulman Page
DOI:10.1002/ejoc.200901029
日期:2010.2
A number of stable new N-H oxaziridines have been designed and prepared, and their reactivity as electrophilic sources of nitrogen investigated. 3-tert-Butyl-3-phenyloxaziridine is the most efficient and stable and has potential for use as a general reagent for this purpose.
Manganese-Catalyzed Dehydrogenative [4+2] Annulation of NH Imines and Alkynes by CH/NH Activation
作者:Ruoyu He、Zhi-Tang Huang、Qi-Yu Zheng、Congyang Wang
DOI:10.1002/anie.201402575
日期:2014.5.5
Described herein is a manganese‐catalyzed dehydrogenative [4+2] annulation of NH imines and alkynes, a reaction providing highly atom‐economical access to diverse isoquinolines. This transformation represents the first example of manganese‐catalyzed CH activation of imines; the stoichiometric variant of the cyclomanganation was reported in 1971. The redox neutral reaction produces H2 as the major
N−H Imine as a Powerful Directing Group for Cobalt‐Catalyzed Olefin Hydroarylation
作者:Wengang Xu、Naohiko Yoshikai
DOI:10.1002/anie.201605877
日期:2016.10.4
N‐alkyl and N‐aryl imineshave been frequently used as directing groups in rhodium‐ and cobalt‐catalyzed hydroarylation reactions of olefins and alkynes. However, the scope of such hydroarylation reactions has been limited by the difficulty of preparation of sterically hindered imines by condensation, and also by the steric bulkiness of the iminegroup itself. Reported herein is that an N−H imine serves
2-Aza-1,3-butadienes bearing alkoxyl substituent were obtained easily by the reaction of ketimines with orthoesters. The reaction proceeded smoothly by the addition of small amount of p-toluenesulfonic acid. When acetals were used in place of orthoesters, the corresponding 2-aza-1,3-butadienes were similarly prepared.
申请人:POSTECH Research and Business Development Foundation 포항공과대학교 산학협력단(220040433361) BRN ▼506-82-07303
公开号:KR20160059189A
公开(公告)日:2016-05-26
본 발명은 유기 아자이드 화합물로부터 질소에 치환기가 없는 이민을 발생시키고, 그와 아실 주개와의 반응을 통해 엔아마이드 화합물을 합성하는 방법에 관한 것이다. 본 발명의 제조 방법을 이용하면, 적절한 촉매를 사용하여 알파 수소를 가진 유기 아자이드로부터 연속한 질소 제거 및 1,2-수소 옮김 반응을 통해 질소에 치환기가 없는 이민을 생성하고, 이 이민과 아실 주개를 반응시켜 엔아마이드 화합물을 합성할 수 있다.