Synthesis, characterization of palladium hydroxysalen complex and its application in the coupling reaction of arylboronic acids: Mizoroki–Heck type reaction and decarboxylative couplings
摘要:
(Salen-OH)Pd (1, salen-OH=N,N'-bis(3,5-di-hydroxysalicylidene)-ethylenediamine) was prepared by a simple one step reaction and fully characterized by H-1 and C-13 NMR, IR spectroscopy, and X-ray crystallography. This palladium complex showed good activities as a catalyst in the Mizoroki-Heck-type reaction and the decarboxylative coupling reaction. In the Mizoroki-Heck type reaction, arylboronic acids and alkenes were reacted at 90 degrees C for 3 h in the presence of 2.0 mol% of the palladium complex 1 and AgOAc to give the desired coupled product in good yields. In the decarboxylative coupling reactions, the desired coupled products were obtained in good yields when 0.5 mol% of the palladium complex was employed at room temperature. (C) 2012 Elsevier B.V. All rights reserved.
Synthesis, characterization of palladium hydroxysalen complex and its application in the coupling reaction of arylboronic acids: Mizoroki–Heck type reaction and decarboxylative couplings
作者:Yumi Heo、Yi Young Kang、Thiruvengadam Palani、Junseong Lee、Sunwoo Lee
DOI:10.1016/j.inoche.2012.05.013
日期:2012.9
(Salen-OH)Pd (1, salen-OH=N,N'-bis(3,5-di-hydroxysalicylidene)-ethylenediamine) was prepared by a simple one step reaction and fully characterized by H-1 and C-13 NMR, IR spectroscopy, and X-ray crystallography. This palladium complex showed good activities as a catalyst in the Mizoroki-Heck-type reaction and the decarboxylative coupling reaction. In the Mizoroki-Heck type reaction, arylboronic acids and alkenes were reacted at 90 degrees C for 3 h in the presence of 2.0 mol% of the palladium complex 1 and AgOAc to give the desired coupled product in good yields. In the decarboxylative coupling reactions, the desired coupled products were obtained in good yields when 0.5 mol% of the palladium complex was employed at room temperature. (C) 2012 Elsevier B.V. All rights reserved.