Room-temperature Suzuki-Miyauracross-coupling reaction with α-diimine Pd(II) catalysts
作者:Fuzhou Wang、Ryo Tanaka、Zhengguo Cai、Yuushou Nakayama、Takeshi Shiono
DOI:10.1002/aoc.3365
日期:2015.11
An α‐diimine Pd(II) complex containing chiral sec‐phenethyl groups, bis[N,N′‐(4‐methyl‐2‐sec‐phenethylphenyl)imino]‐2,3‐butadiene}dichloropalladium (rac‐C1), was synthesized and characterized. rac‐C1 was applied as an efficient catalyst for the Suzuki–Miyaura cross‐coupling reaction between various aniline halides and arylboronic acid in PEG‐400–H2O at room temperature. Among a series of aniline halides
α-二亚胺钯(II)络合物的含手性仲-苯乙基团,双[ Ñ,Ñ ' - (4-甲基-2-仲丁基-phenethylphenyl)亚氨基] -2,3-丁二烯}二氯化钯(外消旋- C1)合成和表征。外消旋- C1施加作为在PEG-400-H的各种苯胺卤化物和芳基硼酸之间的Suzuki-Miyaura交叉偶联反应的有效催化剂2 O不连到室温。在一系列苯胺卤化物中,rac - C1它没有催化苯胺氯化物和氟化物的交叉偶联,但是有效地催化了苯胺溴化物和碘化物与苯硼酸的交叉偶联。随着苯胺溴化物的位阻增加,催化活性略有降低。络合物bis [ N,N '-(4-氟-2-,6-二苯苯基)亚氨基] -2,3-丁二烯}二氯钯和bis [ N,N '-(4-氟-2,6-二苯基苯基)亚胺还发现亚氨基]并}二氯钯是该反应的有效催化剂。版权所有©2015 John Wiley&Sons,Ltd.