Copper-Catalyzed Aliphatic C–H Amination with an Amidine Moiety
摘要:
A method for amination of aliphatic C-H bonds of N-alkylamidines is described that utilizes Cu(OAc)(2) as the catalyst in the presence of Phl(OAc)(2) and K3PO4. The resulting products, dihydroimidazoles and tetrahydropyrimidines, could be converted into the corresponding diamines by hydride reduction.
Copper-Catalyzed Aliphatic C–H Amination with an Amidine Moiety
摘要:
A method for amination of aliphatic C-H bonds of N-alkylamidines is described that utilizes Cu(OAc)(2) as the catalyst in the presence of Phl(OAc)(2) and K3PO4. The resulting products, dihydroimidazoles and tetrahydropyrimidines, could be converted into the corresponding diamines by hydride reduction.
Site‐Specific C(sp<sup>3</sup>)–H Aminations of Imidates and Amidines Enabled by Covalently Tethered Distonic Radical Anions
作者:Rong Zhao、Kang Fu、Yuanding Fang、Jia Zhou、Lei Shi
DOI:10.1002/anie.202008806
日期:2020.11.9
utilization of N‐centered radicals to synthesize nitrogen‐containing compounds has attracted considerable attention recently, due to their powerful reactivities and the concomitant construction of C−N bonds. However, the generation and control of N‐centered radicals remain particularly challenging. We report a tethering strategy using SOMO‐HOMO‐converted distonic radical anions for the site‐specific
Imidazolines substituted at the 1- and either the 4-, or 5-position with phenyl and at the 2-position with alkyl or phenyl have been prepared in racemic form. They appear to be fairly stable compounds and potentially useful as scaffolds in medicinal chemistry.
Method for making 5-membered ring compounds containing N, 0 or S atoms by reacting certain (thio)cyanate or cyanamide salts with compounds having NH2, OH or SH functionality vicinal to an-NH2 group, in the presence of an acid except where said cyanate is an ammonium salt.
制造含有 N、0 或 S 原子的五元环化合物的方法,在酸的存在下,通过使某些(硫代)氰酸酯或氰酰胺盐与具有 NH2、OH 或 SH 官能的化合物在 NH2 基团附近发生反应,但所述氰酸酯为铵盐的情况除外。
Copper-Catalyzed Aliphatic C–H Amination with an Amidine Moiety
A method for amination of aliphatic C-H bonds of N-alkylamidines is described that utilizes Cu(OAc)(2) as the catalyst in the presence of Phl(OAc)(2) and K3PO4. The resulting products, dihydroimidazoles and tetrahydropyrimidines, could be converted into the corresponding diamines by hydride reduction.