Acceptorless and Base-free Dehydrogenation of Cyanohydrin with (η<sup>6</sup>
-Arene)halide(Bidentate Phosphine)ruthenium(II) Complex
作者:Kicheol Kim、Adhitya Mangala Putra Moeljadi、Hajime Hirao、Soon Hyeok Hong
DOI:10.1002/adsc.201700786
日期:2017.10.4
Ruthenium‐catalyzed dehydrogenation of cyanohydrins under acceptorless and base‐free conditions was demonstrated for the first time in the synthesis of acyl cyanide. As opposed to the thermodynamically preferred elimination of hydrogen cyanide, the dehydrogenation of cyanohydrins could be kinetically controlled with ruthenium (II) bidentate phosphine complexes. The effects of the arene, phosphine ligands
CO
<sub>2</sub>
‐Enabled Cyanohydrin Synthesis and Facile Iterative Homologation Reactions**
作者:Martin Juhl、Allan R. Petersen、Ji‐Woong Lee
DOI:10.1002/chem.202003623
日期:2021.1.4
to accelerate cyanohydrin synthesis under neutral conditions with an insoluble cyanide source (KCN) without generating toxic HCN. Under inert atmosphere, the reaction is essentially not operative due to the unfavored equilibrium. The utility of CO2‐mediated selective cyanohydrin synthesis was further showcased by broadening Kiliani–Fischersynthesis under neutral conditions. This protocol offers an
Trimethylsilyl<i>bis</i>(Fluorosulfonyl)imide : An Efficient Catalyst for the Addition of Trimethylsilyl Cyanide to Carbonyl Compounds
作者:Harpinder Kaur、Gurmeet Kaur、Sanjay Trehan
DOI:10.1080/00397919608003546
日期:1996.5
In the presence of 1 mol% of trimethylsilyl bis(fluorosulfonyl)imide, trimethylsilyl cyanide adds efficiently to carbonyl compounds. The catalyst has been found to be more active than trimethylsilyl triflate for the above reaction.
Redox-Neutral α-Cyanation of Amines
作者:Longle Ma、Weijie Chen、Daniel Seidel
DOI:10.1021/ja308009g
日期:2012.9.19
alpha-Aminonitriles inaccessible by traditional Strecker chemistry are obtained in redox-neutral fashion by direct amine alpha-cyanation/N-alkylation or alternatively, alpha-aminonitrile isomerization. These unprecedented transformations are catalyzed by simple carboxylic acids.
NAKATANI M.; KAMIKAWA T.; HASE T.; KUBOTA T., BULL. CHEM. SOC. JAP. <BCSJ-A8>, 1977, 50, NO 4, 945-947