Iron-Catalyzed α-C–H Cyanation of Simple and Complex Tertiary Amines
作者:Ozgur Yilmaz、Cagatay Dengiz、Marion H. Emmert
DOI:10.1021/acs.joc.0c02642
日期:2021.2.5
cyanation of tertiary amines and its application in late-stage functionalization. Suitable substrates include tertiary aliphatic, benzylic, and aniline-type substrates and complex substrates. Functional groups tolerated under the reaction conditions include various heterocycles and ketones, amides, olefins, and alkynes. This broad substrate scope is remarkable, as comparable reaction protocols for
Nucleophilic Attack of α-Aminoalkyl Radicals on CarbonNitrogen Triple Bonds to Construct α-Amino Nitriles: An Experimental and Computational Study
作者:Chao Zhang、Chunmei Liu、Ying Shao、Xiaoguang Bao、Xiaobing Wan
DOI:10.1002/chem.201303296
日期:2013.12.23
A new reactivity pattern of α‐aminoalkyl radicals, involving nucleophilicattack on CN triplebonds under thermal conditions, has been developed to construct α‐amino nitriles. In contrast to previous CH functionalization of tertiary amines involving α‐aminoalkyl radicals, this methodology does not require the use of photocatalytic conditions or a transition‐metal catalyst. Inexpensive and nontoxic
Seven-coordinated chiral uranyl(VI) salen complex as effective catalyst for C–H bond activation of dialkylanilines under visible light
作者:Mohammad Azam、Saud I. Al-Resayes、Agata Trzesowska-Kruszynska、Rafal Kruszynski、Pawan Kumar、Suman L. Jain
DOI:10.1016/j.poly.2016.12.033
日期:2017.3
A new chiral uranyl(VI) complex incorporating a tetradentate salen ligand is reported. The synthesized uranyl complex is studied by microanalyses, spectroscopic and X-ray diffraction studies. The structural studies reveal a slightly distorted pentagonal bipyramid coordination environment around uranyl ion. Interestingly, the uranyl complex was found to be potential visible light active catalyst for C-H bond functionalization of dialkylanilines, and afforded moderate to excellent yield of corresponding alpha-aminonitriles when exposed to visible light for 8 h in the presence of NaCN and acetic acid as cyanide source, and H2O2 as oxidant. (C) 2016 Elsevier Ltd. All rights reserved.