A Copper-Catalyzed Aerobic [1,3]-Nitrogen Shift through Nitrogen-Radical 4-<i>exo</i>
-trig Cyclization
作者:Yan Li、Rui Wang、Tao Wang、Xiu-Fen Cheng、Xin Zhou、Fan Fei、Xi-Sheng Wang
DOI:10.1002/anie.201709894
日期:2017.11.27
shift catalyzed by copper diacetate under an oxygen atmosphere (1 atm) has been developed for the construction of a diverse range of indole derivatives from α,α‐disubstituted benzylamine. In this reaction, oxygen was used as a clean terminal oxidant, and water was produced as the only by‐product. Five inert bonds were cleaved, and two C−N bonds and one C−C double bond were constructed in one pot during
developed for the synthesis of indoline and indole derivatives. The Mo/quinone complex efficiently deoxygenates carbonyl compounds bearing a neighboring dialkylamino group and effects intramolecular cyclizations with the insertion of a deoxygenated carbonyl carbon into a C(sp3)-H bond, in which a carbonylgroup acts as a carbene equivalent. The reaction also proceeds with a catalytic amount of Mo/quinone
Thermally induced [3+2] cyclization of aniline-tethered alkylidenecyclopropanes: a facile synthetic protocol of pyrrolo[1,2-a]indoles
作者:Kai Chen、Zhen Zhang、Yin Wei、Min Shi
DOI:10.1039/c2cc33269h
日期:——
A facile synthetic method of functionalized pyrrolo[1,2-a]indoles has been developed via a thermally-induced ring-opening and cyclization reaction from aniline-tethered alkylidenecyclopropanes with aldehydes.