Catalytic Asymmetric Synthesis of [2,3]-Fused Indoline Heterocycles through Inverse-Electron-Demand Aza-Diels-Alder Reaction of Indoles with Azoalkenes
作者:Min-Chao Tong、Xuan Chen、Jun Li、Rong Huang、Haiyan Tao、Chun-Jiang Wang
DOI:10.1002/anie.201400109
日期:2014.4.25
An unprecedented catalytic asymmetric inverse‐electron‐demand aza‐Diels–Alderreaction of indoles with in situ formed azoalkenes is reported. A diverse set of [2,3]‐fused indoline heterocycles were achieved in generally good yields (up to 97 %) with high regioselectivity and diastereoselectivity (>20:1 d.r.), and with excellent enantioselectivity (up to 99 % ee).
Copper(II)-Catalyzed Asymmetric 1,3-Dipolar [3+4] Cycloaddition and Kinetic Resolution of Azomethine Imines with Azoalkenes
作者:Liang Wei、Zuo-Fei Wang、Lu Yao、Guofu Qiu、Haiyan Tao、Hua Li、Chun-Jiang Wang
DOI:10.1002/adsc.201600961
日期:2016.12.22
copper(II)‐catalyzedenantioselective 1,3‐dipolar [3+4] cycloaddition of azomethineimines with in situ formed azoalkenes has been realized. This strategy provides a facile access to biologically important 1,2,4,5‐tetrazepine derivatives in high yield with exclusive regioselectivity and high stereoselectivity. Moreover, enantioenriched azomethineimines could be obtained via an efficient kinetic resolution
The catalytic asymmetric synthesis of tetrahydropyridazines via inverse electron-demand aza-Diels–Alder reaction of enol ethers with azoalkenes
作者:Liang Wei、Chun-Jiang Wang
DOI:10.1039/c5cc06465a
日期:——
A highly efficient catalytic asymmetric IEDDA reaction of azoalkenes with enol ethers is reported. This methodology provides a facile entry to biologically important tetrahydropyridazines in good yield with good to excellent ee.
Catalytic asymmetric inverse electron demand Diels–Alder reaction of fulvenes with azoalkenes
作者:Liang Wei、Qiao Zhu、Zhi-Min Song、Kang Liu、Chun-Jiang Wang
DOI:10.1039/c7cc09896k
日期:——
An unprecedented copper(I)-catalyzed asymmetric inverse electron demand Diels–Alderreaction of azoalkenes with fulvenes is reported. This methodology offers a directed entry to synthesize bicyclic tetrapyridazine derivatives in good yield with exclusive regioselectivity and excellent stereoselectivity.
diastereo- and enantioselective [3+3] cycloaddition of activated isocyanides with azomethineimines is reported for the first time. Under silver catalysis, a series of bicyclic 1,2,4-triazines were obtained in high yields with high stereoselectivities. The versatility of this system was further demonstrated by the late-stage functionalization of complex bioactive molecules and the kineticresolution of racemic