Stereospecific Copper-Catalyzed Domino Ring Opening and sp3 C–H Functionalization of Activated Aziridines with N-Alkylanilines
摘要:
Copper efficiently catalyzed nucleophilic ring opening, sp(3) C-H functionalization, and C-N bond formation in the presence of tert-butyl hydroperoxide to afford functionalized imidazolidines starting from N-sulfonylaziridines and N-alkylanilines. The products were obtained in high optical purities (95 -> 99% ee) with excellent functional group tolerance.
Cobalt(II)-catalyzed stereospecific coupling of N-methylanilines with styreneoxides is developed via tandem C–N and C–O bond formation using tert-butyl hydroperoxide (TBHP) as an oxidant. Optically active epoxide can be reacted with high optical purity.
Iron-Catalyzed Regioselective α-C–H Alkylation of <i>N</i>-Methylanilines: Cross-Dehydrogenative Coupling between Unactivated C(sp<sup>3</sup>)–H and C(sp<sup>3</sup>)–H Bonds via a Radical Process
作者:Ze-Lin Li、Kang-Kang Sun、Peng-Yu Wu、Chun Cai
DOI:10.1021/acs.joc.9b00625
日期:2019.6.7
without any directing group by cross-dehydrogenative coupling between unactivatedC(sp3)–H and C(sp3)–Hbonds has been established for the first time, which provides a good complement to C(sp3)–Hactivation reactions and expands the field of Fe-catalyzed C–H functionalizations. Many different C(sp3)–Hbonds in cyclic alkanes, cyclic ethers, and toluene derivatives can be used as coupling partners. Mechanistic
Functionalized enamines, including β-enaminoesters were synthesized using in situ generated HMDS amide bases via the combination of aminosilanes and fluoride salts.
Polymers functionalized with imine compounds containing a cyano group
申请人:Bridgestone Corporation
公开号:US10590208B2
公开(公告)日:2020-03-17
A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an imine compound containing a cyano group.
一种制备功能化聚合物的方法,该方法包括以下步骤(i) 使单体聚合形成反应聚合物,和 (ii) 使反应聚合物与含有氰基的亚胺化合物反应。