Complex Polycyclic Scaffolds by Metathesis Rearrangement of Himbert Arene/Allene Cycloadducts
摘要:
The intramolecular arene/allene cycloaddition first described 30 years ago by Himbert and Henn permits rapid access to strained polycyclic compounds. Alkene metathesis processes cleanly rearrange appropriately substituted cycloadducts into complex, functional-group-rich polycyclic lactams of potential utility for natural product synthesis and medicinal chemistry.
A cyanoborohydride‐promoted radicalcyclization methodology has been developed to access α‐chlorolactams in a simple and efficient way using NaBH3CN and trichloroacetamides easily available from allylic and homoallylic secondary amines. This methodology allowed the synthesis of a library of α‐chlorolactams (mono‐ and bicyclic), which were tested for herbicidal activity, trans‐3‐chloro‐4‐methyl‐1‐(
Procédé de préparation de n-allylmetatrifluoromethylaniline
申请人:RHONE-POULENC CHIMIE
公开号:EP0385835A1
公开(公告)日:1990-09-05
La présente invention concerne un procédé de préparation de la N-monoallylmétatrifluorométhylaniline qui consiste à condenser le métabromotrifluorométhylbenzène avec l'allylamine en présence d'un catalyseur à base de nickel à l'état d'oxydation 2.
Complex Polycyclic Scaffolds by Metathesis Rearrangement of Himbert Arene/Allene Cycloadducts
作者:Jonathan K. Lam、Yvonne Schmidt、Christopher D. Vanderwal
DOI:10.1021/ol302680m
日期:2012.11.2
The intramolecular arene/allene cycloaddition first described 30 years ago by Himbert and Henn permits rapid access to strained polycyclic compounds. Alkene metathesis processes cleanly rearrange appropriately substituted cycloadducts into complex, functional-group-rich polycyclic lactams of potential utility for natural product synthesis and medicinal chemistry.
Highly selective N-allylation of anilines under microwave irradiation
作者:Meiyu Liu、Xie Wang、Xiaoliang Sun、Wei He
DOI:10.1016/j.tetlet.2014.03.044
日期:2014.4
for the preparation of a variety of mono- and bis-allylated anilines via the reaction of allyl bromide with a wide range of anilines undermicrowaveirradiation is described. This approach allows use of mild conditions and short reaction times to give high selectivities and excellent yields.