Microwave-Assisted Suzuki Coupling Reactions with an Encapsulated Palladium Catalyst for Batch and Continuous-Flow Transformations
作者:Ian R. Baxendale、Charlotte M. Griffiths-Jones、Steven V. Ley、Geoffrey K. Tranmer
DOI:10.1002/chem.200501400
日期:2006.5.24
This article describes the design, optimisation and development of a Suzuki cross-coupling protocol mediated by an efficient palladium-encapsulated catalyst (Pd EnCat) under microwave irradiation. The methodology has been used in both batch mode for classical library preparation and in continuous-flow applications furnishing multigram quantities of material. Described is a method that uses direct focused
Catalytic Decarboxylative Cross‐Coupling of Aryl Chlorides and Benzoates without Activating
<i>ortho</i>
Substituents
作者:Jie Tang、Agostino Biafora、Lukas J. Goossen
DOI:10.1002/anie.201505843
日期:2015.10.26
substrates was overcome by holistic optimization of a bimetallic Cu/Pd catalyst system. The combination of a CuI/Me4phen decarboxylation catalyst and a [(MeCN)4Pd](OTf)2/XPhos cross‐coupling catalyst enables the synthesis of biaryls from inexpensive aryl chlorides and potassium benzoates regardless of their substitution pattern.
通过整体优化双金属Cu / Pd催化剂体系,克服了脱羧交叉偶联反应对邻位取代或杂环羧酸酯底物的限制。CuI / Me 4 phen脱羧催化剂和[(MeCN)4 Pd](OTf)2 / XPhos交叉偶联催化剂的组合,无论其取代方式如何,均能从廉价的芳基氯化物和苯甲酸钾合成联芳基。
Palladium-Catalyzed Suzuki−Miyaura Cross-Couplings of Sulfonyl Chlorides and Boronic Acids
作者:Srinivas Reddy Dubbaka、Pierre Vogel
DOI:10.1021/ol036131x
日期:2004.1.1
[reaction: see text] R = tolyl, phenyl, 4-halophenyl, 1-naphthyl, 2-nitrophenyl, benzyl, methallyl, r1 = aryl, heteroaryl, alkenyl. Arene-, arylmethane, and alk-2-ene-1-sulfonyl chlorides undergo Suzuki-Miyaura cross-coupling with arene-, heteroarene-, and alkeneboronic acids in THF at reflux. The reactivity order is ArI > ArSO(2)Cl > ArBr >> ArCl.
[反应:见正文] R =甲苯基,苯基,4-卤代苯基,1-萘基,2-硝基苯基,苄基,甲基烯丙基,r1 =芳基,杂芳基,烯基。芳烃,芳基甲烷和烷-2-烯-1-磺酰氯在回流下与芳烃,杂芳烃和烯烃硼酸在THF中进行Suzuki-Miyaura交叉偶联。反应顺序为ArI> ArSO(2)Cl> ArBr >> ArCl。
Palladium-Catalyzed Stille Cross-Couplings of Sulfonyl Chlorides and Organostannanes
作者:Srinivas Reddy Dubbaka、Pierre Vogel
DOI:10.1021/ja038328q
日期:2003.12.1
% tri-2-furylphosphine in tetrahydrofuran or toluene under reflux. This extension of the Stille cross-couplingreaction realizes a new and economical method for the generation of C-C bonds. The palladium-catalyzed carbonylative Stille cross-couplingreactions of arenesulfonyl chlorides and organostannanes in the presence of CO (60 bar) at 110 degrees C in toluene generate the corresponding ketones.
Phosphine-Free Palladium(II)-Catalyzed Arylation of Naphthalene and Benzene with Aryl Iodides
作者:Chunxia Qin、Wenjun Lu
DOI:10.1021/jo801345b
日期:2008.9.19
A phosphine-free arylation of naphthalene and benzene with aryl iodides to give biaryls in moderate to good yields is carried out in the presence of catalytic Pd(OAc)2 and stoichiometric CF3CO2 Ag in TFE or/and TFA.