Exploration of New C-O Electrophiles in Cross-Coupling Reactions

doi:10.1021/ar100082d

CORC > 北京大学 > 化学与分子工程学院

	Exploration of New C-O Electrophiles in Cross-Coupling Reactions
	Yu, Da-Gang ; Li, Bi-Jie ; Shi, Zhang-Jie
刊名	accounts of chemical research
	2010
关键词	CATALYZED ALLYLIC ALKYLATIONS ALKYL-GRIGNARD-REAGENTS CARBON-CARBON BONDS ARYL CHLORIDES ARYLBORONIC ACIDS ROOM-TEMPERATURE POLYSUBSTITUTED AROMATICS ORGANOBORON COMPOUNDS BIARYL CONSTRUCTION OXIDATIVE ADDITION
DOI	10.1021/ar100082d
英文摘要	Since their development in the 1970s, cross-coupling reactions catalyzed by transition metals have become one of the most important tools for constructing both carbon-carbon and carbon-heteroatom bonds. Traditionally, organohalides were widely studied and broadly used as the electrophile, both in the laboratory and in industry. Unfortunately, the high cost, environmental toxicity, and sluggish preparation often associated with aryl halides can make them undesirable for the large-scale syntheses of industrial applications. However, with the further development of catalytic systems, and particularly of the ligands contained therein, a variety of electrophiles have now been successfully applied to cross-coupling reactions. Oxygen-based electrophiles have attracted much attention due to their ready availability from phenol and carbonyl corn pounds. Initially, aryl and alkenyl triflates were used in cross-coupling reactions due to their high reactivity; however, low moisture stability and high cost hampered their application. Later, with the development of highly efficient catalytic systems, the less reactive sulfonates and phosphates were successfully employed in cross-coupling reactions. Although they have higher stability and can be easily prepared, low atom economy remains an obstacle to their broader utility. Our group has worked to directly apply the abundant and readily available oxygen-containing compounds, such as phenols, alcohols, ethers, and carbonyl compounds, to cross-coupling reactions. In this Account, we describe our recent efforts in transition-metal-catalyzed cross-coupling reactions of new O-based electrophiles via C-O bond activation. We began by developing the methylation of aryl methyl ethers and benzyl methyl ethers via Ni-catalyzed selective C-O bond cleavage. With the refined Ni-based catalytic system, we further applied aryl/alkenyl carboxylates and carbamates to Suzuki-Miyaura, Negishi, and Kumada-Tamao-Corriu reactions to construct various biaryl scaffolds and highly substituted alkenes. To further improve the carbon atom economy, we developed the diaryl sulfates as one-by-one electrophiles (that is, both aryl groups are used in the reaction). Most recently, we have achieved the first successful cross-coupling reaction of magnesium naphtholates with aryl Grignard reagents. These results extend aryl and benzyl ethers, aryl and alkenyl carboxylates/carbamates, and magnesium naphtholates as novel electrophiles in cross-coupling reactions. More importantly, these studies contribute to our better understanding the intrinsic nature of C-O bonds, which were traditionally considered 'inert" but clearly show enormous synthetic potential with the proper catalysts.; Chemistry, Multidisciplinary; SCI(E); 50; REVIEW; 12; 1486-1495; 43
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/395169]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yu, Da-Gang,Li, Bi-Jie,Shi, Zhang-Jie. Exploration of New C-O Electrophiles in Cross-Coupling Reactions[J]. accounts of chemical research,2010.
APA	Yu, Da-Gang,Li, Bi-Jie,&Shi, Zhang-Jie.(2010).Exploration of New C-O Electrophiles in Cross-Coupling Reactions.accounts of chemical research.
MLA	Yu, Da-Gang,et al."Exploration of New C-O Electrophiles in Cross-Coupling Reactions".accounts of chemical research (2010).