A Widely Applicable Regioselective Aerobic α-Cyanation of Tertiary Amines Heterogeneously Catalyzed by Manganese Oxides
作者:Kazuya Yamaguchi、Ye Wang、Noritaka Mizuno
DOI:10.1002/cctc.201300477
日期:2013.10
A fit catalyst for some aerobic exercise: A manganese oxide‐based octahedral molecular sieve, OMS‐2, could act as an efficient heterogeneous catalyst for the regioselective α‐cyanation of various tertiaryamines, including trialkyl, benzylic, and N,N‐dialkylaniline derivatives using trimethylsilyl cyanide (TMSCN) as the cyano source and molecular oxygen as the terminal oxidant.
Cyanoacetic Acid as a Masked Electrophile: Transition-Metal-Free Cyanomethylation of Amines and Carboxylic Acids
作者:Hongxiang Wang、Ying Shao、Hao Zheng、Hanghang Wang、Jiang Cheng、Xiaobing Wan
DOI:10.1002/chem.201502733
日期:2015.12.7
Using cyanoaceticacid as a maskedelectrophile, a new cyanomethylation reaction of amines and carboxylicacids was developed, producing a variety of α‐aminonitriles and cyanomethyl esters with good yields and excellent functionality tolerance. This protocol features simple manipulation, inexpensive reagents, and a wide substrate scope. Iodoacetonitrile was generated in situ from the iodination–decarboxylation
Iron catalyzed oxidative cyanation of tertiary amines
作者:Wei Han、Armin R. Ofial
DOI:10.1039/b910548d
日期:——
Iron(ii) and iron(iii) salts catalyze the oxidative alpha-cyanation of tertiaryamines by trimethylsilyl cyanide in the presence of tert-butylhydroperoxide under acid-free conditions at room temperature.
Azobisisobutyronitrile Initiated Aerobic Oxidative Transformation of Amines: Coupling of Primary Amines and Cyanation of Tertiary Amines
作者:Lianghui Liu、Zikuan Wang、Xuefeng Fu、Chun-Hua Yan
DOI:10.1021/ol302708r
日期:2012.11.16
In the presence of a catalytic amount of radical initiator AIBN, primary amines are oxidatively coupled to imines and tertiaryamines are cyanated to α-aminonitriles. These “metal-free” aerobicoxidative coupling reactions may find applications in a wide range of “green” oxidation chemistry.
Metal-Free Aerobic Oxidative Cyanation of Tertiary Amines: Azobis(isobutyronitrile) (AIBN) as a Sole Cyanide Source
作者:Peng-Yu Liu、Chao Zhang、Shi-Chen Zhao、Fang Yu、Fei Li、Yu-Peng He
DOI:10.1021/acs.joc.7b02021
日期:2017.12.1
An aerobicoxidative cyanation for the synthesis of α-aminonitriles was reported. The formation of C(sp3)-CN bonds was achieved under a metal-free condition by utilizing azobis(isobutyronitrile) as a sole organic cyanide source with the combination of pivalic acid and sodium acetate as additives.