Highly Efficient Monophosphine-Based Catalyst for the Palladium-Catalyzed Suzuki−Miyaura Reaction of Heteroaryl Halides and Heteroaryl Boronic Acids and Esters
作者:Kelvin Billingsley、Stephen L. Buchwald
DOI:10.1021/ja068577p
日期:2007.3.1
active and efficient catalyst system derived from a palladium precatalyst and monophosphine ligands 1 or 2 for the Suzuki-Miyaura cross-coupling reaction of heteroaryl boronic acids and esters has been developed. This method allows for the preparation of a wide variety of heterobiaryls in good to excellent yields and displays a high level of activity for the coupling of heteroaryl chlorides as well as
ne/[PdCl(C3H5)]2 efficiently catalyses the Suzuki reaction of heteroarylboronicacids with aryl bromides and also the coupling of arylboronic acids with heteroaryl bromides. The coupling of thiophene- or benzothiopheneboronic acids, furan- or benzofuranboronic acids and 3-pyridineboronic acid with a variety of aryl bromides gave the corresponding coupling products in good yields. However, in most cases
顺式,顺式,顺式-1,2,3,4-四(二苯基膦甲基)环戊烷/ [PdCl(C 3 H 5)] 2有效催化杂芳基硼酸与芳基溴化物的Suzuki反应,以及芳基硼酸与杂芳基的偶联溴化物。噻吩或苯并噻吩硼酸,呋喃或苯并呋喃硼酸和3-吡啶硼酸与各种芳基溴的偶合得到相应的偶合产物,收率很高。然而,在大多数情况下,使用杂芳基溴化物与芳基硼酸进行的逆反应在底物/催化剂的比例方面获得了更好的结果。
Suzuki Coupling Reactions of Heteroarylboronic Acids with Aryl Halides and Arylboronic Acids with Heteroaryl Bromides Using a Tetraphosphine/Palladium Catalyst
4-Tetrakis(diphenylphosphinomethyl)cyclopentane/[PdCl(C 3 H 5 )] 2 efficiently catalyses the Suzuki reaction of heteroarylboronicacids with aryl bromides and also the coupling of arylboronic acids with heteroaryl bromides. The coupling of thiopheneboronic acids. 3-furanboronic acid and 3-pyridineboronic acid with a variety of aryl bromides gave the corresponding adducts in good yields. However, in most cases,
cis,cis,cis-1,2,3,4-Tetrakis(diphenylphosphinomethyl)cyclopentane/[PdCl(C 3 H 5 )] 2 有效催化杂芳基硼酸与芳基溴化物的 Suzuki 反应以及芳基硼酸与杂芳基的偶联溴化物。噻吩硼酸的偶联。3-呋喃硼酸和3-吡啶硼酸与各种芳基溴化物以良好的产率得到相应的加合物。然而,在大多数情况下,杂芳基溴化物与芳基硼酸的反应在底物/催化剂比方面获得了更好的结果。
Nickel-Catalyzed Decarbonylative Coupling of Aryl Esters and Arylboronic Acids
作者:Nicole A. LaBerge、Jennifer A. Love
DOI:10.1002/ejoc.201500630
日期:2015.9
accessed by coupling aryl and heteroaryl esters with boronic acids in Suzuki–Miyaura-type decarbonylative cross-coupling catalyzed by an affordable catalyst system composed of Ni(cod)2 and PCy3. The methodology is tolerant of a variety of functional groups and presents an attractive alternative to the use of palladium catalysis currently used in industry to acquire such bis(hetero)aryls, but also reveals
Evaluation of P-bridged biaryl phosphine ligands in palladium-catalysed Suzuki–Miyaura cross-coupling reactions
作者:Jairus L. Lamola、Paseka T. Moshapo、Cedric W. Holzapfel、Munaka Christopher Maumela
DOI:10.1039/d1ra04947j
日期:——
A family of biaryl phosphacyclic ligands derived from phobane and phosphatrioxa-adamantane frameworks is described. The rigid biaryl phosphacycles are efficient for Suzuki–Miyauracross-coupling of aryl bromides and chlorides. In particular, coupling reactions of the challenging sterically hindered and heterocyclic substrates were viable at room temperature.