Intermolecular C–H Amidation of Alkenes with Carbon Monoxide and Azides via Tandem Palladium Catalysis
作者:Zheng-Yang Gu、Yang Wu、Xiaoguang Bao、Ji-Bao Xia、Feng Jin
DOI:10.1055/a-1401-4486
日期:2021.9
alkenes with carbonmonoxide and organic azides has been developed for the synthesis of alkenyl amides. The reaction proceeds efficiently without an ortho-directing group on the alkene substrates. Nontoxic dinitrogen is generated as the sole by-product. Computational studies and control experiments have revealed that the reaction takes place via an unexpected mechanism by tandem palladium catalysis.
[EN] INHIBITORS OF LOW MOLECULAR WEIGHT PROTEIN TYROSINE PHOSPHATASE (LMPTP) AND USES THEREOF<br/>[FR] INHIBITEURS DE LA PROTÉINE TYROSINE PHOSPHATASE DE FAIBLE POIDS MOLÉCULAIRE (LMPTP) ET UTILISATIONS ASSOCIÉES
申请人:SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INST
公开号:WO2019136093A1
公开(公告)日:2019-07-11
Protein tyrosine phosphatases (PTPs) are key regulators of metabolism and insulin signaling. As a negative regulator of insulin signaling, the low molecular weight protein tyrosine phosphatase (LMPTP) is a target for insulin resistance and related conditions. Described herein are compounds capable of modulating the level of activity of LMPTP, compositions, and methods of using these compounds and compositions.
[EN] NOVEL COMPOUNDS FOR THE DIAGNOSIS, TREATMENT AND PREVENTION OF DISEASES ASSOCIATED WITH THE AGGREGATION OF ALPHA-SYNUCLEIN<br/>[FR] NOUVEAUX COMPOSÉS POUR LE DIAGNOSTIC, LE TRAITEMENT ET LA PRÉVENTION DE MALADIES ASSOCIÉES À L'AGRÉGATION DE L'ALPHA-SYNUCLÉINE
申请人:MODAG GMBH
公开号:WO2021099518A1
公开(公告)日:2021-05-27
The present invention relates to compounds represented by general formula (la), (lb), (lla) or(llb). These compounds are suitable for imaging alpha-synuclein and for diagnosing diseases which are associated with the aggregation of alpha-synuclein. The compounds are also useful for treating and preventing diseases which are associated with the aggregation of alpha-synuclein.
Ligand‐Enabled Nickel‐Catalyzed Redox‐Relay Migratory Hydroarylation of Alkenes with Arylborons
作者:Yuli He、Chuang Liu、Lei Yu、Shaolin Zhu
DOI:10.1002/anie.202001742
日期:2020.6.2
A redox-relay migratory hydroarylation of isomeric mixtures of olefins with arylboronic acids catalyzed by nickel complexes bearing diamine ligands is described. A range of structurally diverse 1,1-diarylalkanes, including those containing a 1,1-diarylated quaternary carbon, were obtained in excellent yields and with high regioselectivity. Preliminary experimental evidence supports the proposed non-dissociated
Anti-Markovnikov terminal and <i>gem</i>-olefin hydrosilylation using a κ<sup>4</sup>-diimine nickel catalyst: selectivity for alkene hydrosilylation over ether C–O bond cleavage
作者:Christopher L. Rock、Ryan J. Trovitch
DOI:10.1039/c8dt04608e
日期:——
found to catalyze alkenehydrosilylation in the presence of Ph2SiH2 with turnover frequencies of up to 124 h−1 at 25 °C (990 h−1 at 60 °C). Moreover, the selective hydrosilylation of allylic and vinylic ethers has been demonstrated, even though (Ph2PPrDI)Ni is known to catalyze allyl ester C–O bond hydrosilylation. At 70 °C, this catalyst has been found to mediate the hydrosilylation of ten different