Efficient Synthesis of Functionalized Dihydro-1<i>H</i>-indol-4(5<i>H</i>)-ones via One-Pot Three-Component Reaction under Catalyst-Free Conditions
作者:Hui-Yan Wang、Da-Qing Shi
DOI:10.1021/co4000198
日期:2013.5.13
A facile and efficient one-pot procedure for the preparation of functionalized dihydro-1H-indol-4(5H)-ones by a catalyst-free, three-component reaction of 1,3-dicarbonyl compounds, arylglyoxal monohydrate and enaminones under mild conditions in excellent yield is reported. This synthesis was confirmed to follow the group-assisted-purification (GAP) chemistry process, which can avoid traditional purifications
An acid-promoted multicomponent reaction for the direct C(sp3)N bond formation was achieved through intermolecular allylic amidation in a one-pot operation to synthesize 7-acetamido tetrahydroindole derivatives from simple and readily available arylglyoxal monohydrates, acetonitriles, and enamines of 5,5-dimethyl-1,3-cyclohexadione (dimedone) has been developed. Here acetonitrile acts both as solvent
Highly efficient construction of pentacyclic benzo[b]indeno-[1,2,3-de][1,8]naphthyridine derivatives via four-component domino reaction
作者:Cheng-Pao Cao、Wei Lin、Ming-Hua Hu、Zhi-Bin Huang、Da-Qing Shi
DOI:10.1039/c3cc43489c
日期:——
A series of new octahydrobenzo[b]indeno[1,2,3-de][1,8] naphthyridine and decahydropyrido[2,3,4-gh]phenanthridine derivatives were synthesized via a four-component domino reaction under microwave irradiation. This one-pot transformation, which involved multiple steps and did not require the use of a catalyst, constructed four new C–C bonds, two new C–N bonds, and three new rings, with efficient use of all reactants.
Catalytic Asymmetric Aza-ene Reaction of 3-Indolylmethanols with Cyclic Enaminones: Enantioselective Approach to C3-Functionalized Indoles
作者:Wei Tan、Bai-Xiang Du、Xin Li、Xu Zhu、Feng Shi、Shu-Jiang Tu
DOI:10.1021/jo500644v
日期:2014.5.16
The catalytic asymmetric aza-ene reactions of 3-indolylmethanols with cyclic enaminones and the highly enantioselective aza-ene reactions utilizing cyclic aza-ene components have been established, which directly assemble isatin-derived 3-indolylmethanols and dimedone-derived enaminones into C3-functionalized chiral indoles with one all-carbon quaternary stereogenic center in high yields and excellent enantioselectivities (up to 99% yield, up to 95:5 er).