Synthesis of biaryls via nickel-catalyzed cross-coupling reaction of arylboronic acids and aryl mesylates
โ Scribed by Masato Ueda; Atsushi Saitoh; Saori Oh-tani; Norio Miyaura
- Book ID
- 104208876
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 407 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0040-4020
No coin nor oath required. For personal study only.
โฆ Synopsis
The cross-coupling reaction of arylboronic acids (1.3 equivs) with aryl methanesulfonates was carded out in the presence of anickel(O) catalyst(3 tool%) and K3PO~,nH20 (3 equivs). The use of toluene as the solvent and the nickel(O)-dppf catalyst prepared from NiC~(dppf) plus dppf with BuLi were recognized to be the most efficient to achieve both high yields and high selectivity. The reaction can be app~ed to various electron-deficient and -rich aryl methanesulfonates to give high yields.
๐ SIMILAR VOLUMES
Synthesis of Biaryls via a Nickel(0)-Catalyzed Cross-Coupling Reaction of Chloroarenes with Arylboronic Acids. -Optimized conditions are found for coupling of a wide range of chloroarenes with various functionalized arylboronic acids using K 3 PO 4 as base and dioxane or benzene as solvent. Nickel(0