Highly Active Catalyst for the Heterogeneous Suzuki−Miyaura Reaction: Assembled Complex of Palladium and Non-Cross-Linked Amphiphilic Polymer
作者:Yoichi M. A. Yamada、Koji Takeda、Hideyo Takahashi、Shiro Ikegami
DOI:10.1021/jo034354v
日期:2003.10.1
An assembled insoluble catalyst, PdAS, prepared from palladium ((NH4)2PdCl4 (1)) and non-cross-linked amphiphilic copolymer poly(N-isopropylacrylamide-co-4-diphenylstyrylphosphine) (2) was developed. It was found that PdAS is an excellent catalyst for the Suzuki-Miyaura reaction on three points: (1) The use of 8 x 10(-7) to 5 x 10(-4) mol equiv of PdAS afforded the coupling products efficiently after
开发了由钯((NH4)2PdCl4(1))和非交联两亲共聚物聚(N-异丙基丙烯酰胺-co-4-二苯基苯乙烯基膦)(2)制备的组装的不溶催化剂PdAS。已发现,PdAS在以下三个方面是铃木-宫浦反应的优良催化剂:(1)使用8 x 10(-7)到5 x 10(-4)摩尔当量的PdAS在偶联后有效地提供了偶联产物简单的后处理,营业额高达1,250,000。(2)催化剂可重复使用多次而不会损失催化活性。(3)PdAS在任何反应介质(即水或水性或无水有机溶剂)中均显示出良好的稳定性。对PdAS的分析研究表明2中的膦与钯配位形成PdCl2(PPh2Ar)2物种。
Dinuclear Iron Complex-Catalyzed Cross-Coupling of Primary Alkyl Fluorides with Aryl Grignard Reagents
作者:Zhenbo Mo、Qiang Zhang、Liang Deng
DOI:10.1021/om300722g
日期:2012.9.24
Iron-catalyzed cross-coupling of nonactivated primary alkylfluorides with aryl Grignardreagents has been achieved by using the low-coordinate dinuclear iron complex [(IPr2Me2)Fe(μ2-NDipp)2Fe(IPr2Me2)] as the catalyst. This iron-catalyzed C(sp3)–F bond arylation reaction is applicable to a variety of aryl Grignardreagents and primary alkylfluorides. The product pattern suggests the involvement of a
Smith, Keith; Pollaud, Guy M, Journal of the Chemical Society. Perkin transactions I, 1994, # 24, p. 3519 - 3520
作者:Smith, Keith、Pollaud, Guy M
DOI:——
日期:——
Iron Catalyst for Oxidation in Water: Surfactant-type Iron Complex-catalyzed Mild and Efficient Oxidation of Aryl Alkanes Using Aqueous TBHP as Oxidant in Water
作者:Takashi Nagano、Shu Kobayashi
DOI:10.1246/cl.2008.1042
日期:2008.10.5
Surfactant-type iron(III) complex, Fe 2 O(DS) 4 , was found to be effective for benzylic oxidation of simple aryl alkanes using aqueous t-butyl hydroperoxide (TBHP) as an oxidant.
发现表面活性剂型铁 (III) 配合物 Fe 2 O(DS) 4 可有效用于使用叔丁基氢过氧化物 (TBHP) 作为氧化剂的简单芳基烷烃的苄基氧化。
10.1002/anie.202401198
作者:Michiyuki, Takuya、Homölle, Simon L.、Pandit, Neeraj K.、Ackermann, Lutz
DOI:10.1002/anie.202401198
日期:——
A formal C(sp2)−H alkylation via the dibenzothiophenylation/nickel-catalyzed eXEC sequence is presented. The first activation step selectively gives aryldibenzothiophenium salts, which are subsequently engaged in electroreductive nickel catalysis. The method provides various C(sp2)−C(sp3) linkages with high sp3-hybridized carbon contents. The demonstration of one-pot alkylations further reinforces