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.
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
Acetone Cyanohydrin: A Convenient Alternative of Toxic Sodium Cyanide/Acetic Acid for Oxidative Cyanation of Tertiary Amines
作者:Sanny Verma、Suman L. Jain、Bir Sain
DOI:10.1007/s10562-011-0582-6
日期:2011.6
Acetone cyanohydrin was found to be a facile, convenient and comparatively safer alternative to toxic sodiumcyanide/acetic acid system for generating in situ HCN for the oxidativecyanation of tertiaryamines to α-aminonitriles in high yields with hydrogenperoxideusing RuCl3 as catalyst. In addition organic nature of acetone cyanohydrin makes it more suitable for an organic transformation since
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.