烷基溴拴系的亚烷基亚环丙烷的分子内自由基串联环化反应镍催化合成苯并[ b ]萘并[1,2- d ]氮杂
摘要:
本文描述了Ni(II)催化的串联环丙烷丙烷开环和使用未活化的烷基溴-束缚的亚烷基环丙烷(ACP)对芳环进行自由基烷基化。这种成环过程显示出具有多种伯烷基溴和芳族环的广泛底物范围,在温和条件下以中等至优异的产率提供了多种苯并[ b ]萘[1,2- d ] a庚因衍生物。在包括氘标记检查在内的几个对照实验的基础上,提出了合理的反应机理。还对获得的多环产物进行了进一步的衍生化。
Thermal induced intramolecular [2 + 2] cycloaddition of allene-ACPs
作者:Kai Chen、Run Sun、Qin Xu、Yin Wei、Min Shi
DOI:10.1039/c3ob40911b
日期:——
A facile synthetic method for preparation of bicyclo[4.2.0] nitrogen heterocycles has been developed via a thermal induced intramolecular [2 + 2] cycloaddition reaction of allene-ACPs. The DFT calculations indicate that this intramolecular cycloaddition proceeds in a concerted manner and a strained small ring is essential.
Thermally‐Induced Intramolecular [4+2] Cycloaddition of Allylamino‐ or Allyloxy‐Tethered Alkylidenecyclopropanes
作者:Leyi Tao、Yin Wei、Min Shi
DOI:10.1002/asia.202100635
日期:2021.9
A novel thermally-induced intramolecular [4+2] cycloaddition of allylamino- or allyloxy-tethered alkylidenecyclopropanes for the rapid construction of polycyclic skeleton molecules.
Palladium-catalyzed cascade cyclization of allylamine-tethered alkylidenecyclopropanes: facile access to iodine/difluoromethylene- and perfluoroalkyl-containing 1-benzazepine scaffolds
作者:Liu-Zhu Yu、Zi-Zhong Zhu、Xu-Bo Hu、Xiang-Ying Tang、Min Shi
DOI:10.1039/c6cc02496c
日期:——
Palladium-catalyzed radical cascade iododifluoromethylation and iodoperfluoroalkyation/cyclization of allylamine-tethered alkylidenecyclopropanes (ACPs) were developed.
A facile method for the synthesis of dihydroquinoline-azide from the Lewis acid-catalyzed reaction of alkylidenecyclopropanes with TMSN<sub>3</sub>
作者:Mintao Chen、Yin Wei、Min Shi
DOI:10.1039/c9ob02309g
日期:——
A facile synthetic method for the formation of dihydroquinoline-azide from alkylidenecyclopropanes and TMSN3 under the catalysis of a Lewis acid has been developed, and a number of azide-containing compounds can be instantly accessed in moderate to good yields. A click reaction with these azido compounds was also realized along with a mechanistic investigation.