A metal-free protocol of direct C(sp3)–H cyanation with cyanobenziodoxolones functioning as both cyanating reagents and oxidants was developed. Unactivated substrates, such as alkanes, ethers and tertiary amines, were thereby transformed to the corresponding nitriles in moderate to high yields. Mechanistic studies indicated that the cyanation proceeded with two potential pathways, which is highly dependent
α-Cyanation of Aromatic Tertiary Amines using Ferricyanide as a Non-Toxic Cyanide Source
作者:Alexander M. Nauth、Nicola Otto、Till Opatz
DOI:10.1002/adsc.201500698
日期:2015.11.16
reaction of aromatictertiaryamines with potassium ferricyanide directly provides the useful α-amino nitriles. The inexpensive iron complex functions both as an oxidant and as a cyanidesource. The presence of molecular oxygen speeds up the reaction which can be performed in aqueous tert-butanol or even in ethanol-based mixtures like Tequila. While amine cyanations usually employ highly toxic cyanide sources
[EN] SUBSTITUTED PIPERIDINES THAT INCREASE p53 ACTIVITY AND THE USES THEREOF<br/>[FR] PIPÉRIDINES SUBSTITUÉES QUI ACCROISSENT L'ACTIVITÉ DE P53, ET UTILISATIONS DE CES COMPOSÉS
申请人:SCHERING CORP
公开号:WO2011046771A1
公开(公告)日:2011-04-21
The present invention provides a compound of Formula (1) as described herein or a pharmaceutically acceptable salt, solvate or ester thereof. The compounds are useful as inhibitors of the HDM2 protein. Also disclosed are pharmaceutical compositions comprising the above compounds and methods of treating cancer using the same.
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
PIFA-Promoted, Solvent-Controlled Selective Functionalization of C(sp<sup>2</sup>)–H or C(sp<sup>3</sup>)–H: Nitration via C–N Bond Cleavage of CH<sub>3</sub>NO<sub>2</sub>, Cyanation, or Oxygenation in Water
作者:Chandrashekar Mudithanapelli、Lama Prema Dhorma、Mi-hyun Kim
DOI:10.1021/acs.orglett.9b00751
日期:2019.5.3
CH3NO2) mediated by [bis(trifluoroacetoxy)iodo]benzene (PIFA) is described. The NO2 transfer from CH3NO2 to the aromatic group of the substrate is possible with careful selection of the solvent, NaX, and oxidant. In addition, the solvent-controlled C(sp2)–H functionalization can shift to an α-C(sp3)–H functionalization (cyanation or oxygenation) of the α-C(sp3)–H of cyclic amines.
描述了由[双(三氟乙酰氧基)碘]苯(PIFA)介导的新型硝化作用(通过C(SP 3)–N破坏/ C(SP 2)–N与CH 3 NO 2形成)。的NO 2从CH转印3 NO 2到基板的芳族基团是可能的溶剂,的NaX,和氧化剂的仔细选择。此外,溶剂控制的C(SP 2)-H官能化可转移到一个α-C(SP 3)-H官能的α-C(SP的(氰化或氧合)3)-H的环胺。