[EN] BORONIC ACID CATALYSTS AND METHODS OF USE THEREOF FOR ACTIVATION AND TRANSFORMATION OF CARBOXYLIC ACIDS [FR] CATALYSEURS À BASE D'ACIDE BORONIQUE ET PROCÉDÉS D'UTILISATION ASSOCIÉS POUR L'ACTIVATION ET LA TRANSFORMATION D'ACIDES CARBOXYLIQUES
Straightforward Synthetic Access to<i>gem</i>-Diaurated and Digold σ,π-Acetylide Species
作者:Adrián Gómez-Suárez、Stéphanie Dupuy、Alexandra M. Z. Slawin、Steven P. Nolan
DOI:10.1002/anie.201208234
日期:2013.1.14
The more the merrier: Following previous investigations on the synthesis of organogold complexes by using [Au(IPr)(OH)], a high‐yielding straightforward methodology for the synthesis of gem‐diaurated and σ,π‐acetylide species via a dinuclear gold hydroxide complex [Au(IPr)}2(μ‐OH)][BF4] (see scheme) has now been developed.
Novel pyrazolo[1,5- a ]pyridines as orally active EP 1 receptor antagonists: Synthesis, structure-activity relationship studies, and biological evaluation
Novel pyrazolo[1,5-a]pyridine derivatives were designed, synthesized and evaluated as orallyactive EP1 antagonists for the treatment of overactive bladder. Matched molecular pair analysis (MMPA) allowed the design of a new series of pyrazolo[1,5-a]pyridine derivatives 4-6. Structure-activity relationships (SAR) studies of 4-6 were performed, leading to identification of the nanomolar-level EP1 antagonist
Copper-Catalyzed C(sp<sup>3</sup>)–OH Cleavage with Concomitant C–C Coupling: Synthesis of 3-Substituted Isoindolinones
作者:H. Surya Prakash Rao、A. Veera Bhadra Rao
DOI:10.1021/jo502446k
日期:2015.2.6
Copper(II) trifluoromethanesulfonate (Cu(OTf)2) efficientlycatalyzes the C–C coupling of 3-hydoxyisoindolinones with a variety of aryl-, heteroaryl-, and alkenylboronic acids to furnish C(3) aryl-, heteroaryl-, and alkenyl-substituted isoindolinones. The coupling reactions work smoothly in 1,2-dicholoroethane (DCE) reflux, to effect both inter- and intramolecular versions. This is the first report
Base-free nickel-catalysed decarbonylative Suzuki–Miyaura coupling of acid fluorides
作者:Christian A. Malapit、James R. Bour、Conor E. Brigham、Melanie S. Sanford
DOI:10.1038/s41586-018-0628-7
日期:2018.11
Suzuki–Miyaura-type reactions to proceed without an exogenous base12–14. Here we use this approach to develop a nickel-catalysed coupling of aryl boronic acids with acid fluorides15–17, which are formed in situ from readily available carboxylic acids18–22. This combination of catalyst and electrophile enables a mechanistic manifold in which a ‘transmetallation-active’ aryl nickel fluorideintermediate is generated
Directed Markovnikov hydroarylation and hydroalkenylation of alkenes under nickel catalysis
作者:Zi-Qi Li、Omar Apolinar、Ruohan Deng、Keary M. Engle
DOI:10.1039/d1sc03121j
日期:——
Native Lewis basic functional groups enable the nickel-catalyzed Markovnikov-selective hydroarylation and hydroalkenylation of unactivated alkenes with organoboron reagents.