Iron-Catalyzed Direct C3-Benzylation of Indoles with Benzyl Alcohols through Borrowing Hydrogen
作者:Giovanni Di Gregorio、Michele Mari、Francesca Bartoccini、Giovanni Piersanti
DOI:10.1021/acs.joc.7b01603
日期:2017.8.18
We present the coupling of primary and secondary benzylalcohols with indoles to form 3-benzylated indoles and H2O that is catalyzed, for the first time, by a complex of earth-abundant iron. This transformation accommodates a variety of substrates and is distinguished by its operational simplicity, sustainability, high functional-group tolerance, and amenability to gram-scale synthesis. On the basis
Divergent Syntheses of Indoles and Quinolines Involving N1–C2–C3 Bond Formation through Two Distinct Pd Catalyses
作者:Su San Jang、Young Ho Kim、So Won Youn
DOI:10.1021/acs.orglett.0c02898
日期:2020.12.4
annulative couplings of 2-alkenylanilines with aldehydes using alcohols as both the solvent and hydrogen source have been developed. These domino processes allow divergent syntheses of two significant N-heterocycles, indoles and quinolines, from the same substrate by tuning reaction parameters, which seems to invoke two distinct mechanisms. The nature of the ligand and alcoholic solvent had a profound
Rh-Catalyzed oxidative C–H activation/annulation: converting anilines to indoles using molecular oxygen as the sole oxidant
作者:Guoying Zhang、Hui Yu、Guiping Qin、Hanmin Huang
DOI:10.1039/c3cc49751h
日期:——
A practical and efficient Rh(III)-catalyzed aerobic C-Hactivation has been developed for the facile synthesis of a broad range of indoles from simple anilines and alkynes. The protocol could be conducted under mild conditions and used environmentally friendly oxygen as the sole clear oxidant.
Nickel-catalyzed C3-alkylation of indoles with alcohols <i>via</i> a borrowing hydrogen strategy
作者:Miao Hu、Yong Jiang、Nan Sun、Baoxiang Hu、Zhenlu Shen、Xinquan Hu、Liqun Jin
DOI:10.1039/d1nj01581h
日期:——
An efficient Ni-catalyzed C3-alkylation of indoles with alcohols via a borrowing hydrogen pathway was achieved utilizing an N,O-donor coordinated nickel complex as the precatalyst.