132719-10-9Relevant articles and documents
Copper-Mediated Trifluoroacetylation of Arenediazonium Salts with Ethyl Trifluoropyruvate
Wu, Wei,Tian, Qinli,Chen, Taotao,Weng, Zhiqiang
supporting information, p. 16455 - 16458 (2016/11/11)
A copper-mediated trifluoroacetylation of various arenediazonium salts with ethyl trifluoropyruvate is reported. The reaction proceeded smoothly under mild conditions at room temperature giving trifluoromethyl aryl ketones in moderate to good yields. A variety of functional groups, including methoxy, hydroxy, ester, ketone, trifluoromethyl, and halide groups, were well tolerated. A possible reaction mechanism involving an aryl radical intermediate was proposed and supported by experimental evidence. This reaction provides a new route to trifluoromethyl aryl ketones, notable synthetic targets, from the corresponding anilines.
A coupling of benzamides and donor/acceptor diazo compounds to form γ-lactams via Rh(III)-catalyzed C-H activation
Hyster, Todd K.,Ruhl, Kyle E.,Rovis, Tomislav
supporting information, p. 5364 - 5367 (2013/05/22)
The coupling of O-pivaloyl benzhydroxamic acids with donor/acceptor diazo compounds provides isoindolones in high yield. The reaction tolerates a broad range of benzhydroxamic acids and diazo compounds, including substituted 2,2,2-trifluorodiazoethanes. Mechanistic experiments suggested that C-H activation is turnover-limiting and irreversible and that insertion of the diazo compound favors electron-deficient substrates.
Photoaffinity labeling on magnetic microspheres (PALMm) methodology for topographic mapping: Preparation of PALMm reagents and demonstration of biochemical relevance
Halbfinger, Efrat,Gorochesky, Karine,Levesque, Sebastien A.,Beaudoin, Adrien R.,Sheihet, Larisa,Margel, Shlomo,Fischer, Bilha
, p. 2821 - 2832 (2007/10/03)
Photoaffinity labeling (PAL) is a technique widely used for identifying the binding-site within proteins. Although the classic method is both versatile and powerful, it suffers significant disadvantages, such as the need to radiolabel the PAL ligand, and the need to conduct highly complicated separations of both the labeled protein and the labeled peptides derived from it. Here, we propose a novel and universal methodology - Photo-Affinity Labeling on Magnetic microspheres (PALMm) designed to simplify and shorten the PAL protocol. In this context, we describe the preparation of PALMm reagents and the evaluation of their biochemical relevance regarding two ATP-binding enzymes: hexokinase and apyrase.