- Green synthesis of biphenyl carboxylic acids via Suzuki–Miyaura cross-coupling catalyzed by a water-soluble fullerene-supported PdCl2 nanocatalyst
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A green synthesis of variously substituted biphenyl carboxylic acids was achieved through Suzuki–Miyaura cross-coupling of a bromobenzoic acid with an aryl boronic acid using a water-soluble fullerene-supported PdCl2 nanocatalyst (C60-TEGs/ PdCl2). Yields of more than 90% were obtained at room temperature in 4 h using 0.05 mol% catalyst and 2 equiv. K2CO3.
- Liu, Wanyun,Zhou, Xiuming,Huo, Ping,Li, Jingbo,Mei, Guangquan
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- A highly efficient catalyst of a nitrogen-based ligand for the Suzuki coupling reaction at room temperature under air in neat water
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Glycine, as a kind of commercially available and inexpensive ligand, is used to prepare an air-stable and water-soluble catalyst for the Suzuki-Miyaura reaction in our study. In the presence of 0.1% [PdCl2(NH 2CH2COOH)2] as the catalyst, extremely excellent catalytic activity towards the Suzuki-Miyaura coupling of aryl halides containing the carboxyl group with various aryl boronic acids is observed at room temperature under air in neat water. the Partner Organisations 2014.
- Liu, Shiwen,Lv, Meiyun,Xiao, Daoan,Li, Xiaogang,Zhou, Xiuling,Guo, Mengping
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supporting information
p. 4511 - 4516
(2014/06/23)
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- Palladium charcoal-catalyzed, ligandless Suzuki reaction by using tetraarylborates in water
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In water and without using any ligand, palladium charcoal-catalyzed Suzuki coupling reaction of tetraarylborates with aryl bromides could be achieved in excellent yield. A concise mechanism consisting of four catalytic cycles is depicted in this paper.
- Lu, Gang,Franzén, Robert,Zhang, Qian,Xu, Youjun
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p. 4255 - 4259
(2007/10/03)
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- Palladium-catalyzed biaryl-coupling reaction of arylboronic acids in water using hydrophilic phosphine ligands
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Hydrophilic phosphine ligands possessing a carbohydrate side-chain, such as N-(4-diphenylphosphinophenyl)methyl gluconamide (9), N-[4-(2′-dicyclohexylphosphinobiphenyl)phenylmethyl] gluconamide (10), and N-[4-(2′-di-t-butylphosphinobiphenyl)]phenylmethyl gluconamide (11), were newly synthesized to carry out palladium-catalyzed biaryl coupling of arylboronic acids in a single aqueous medium. The catalyst prepared in situ from Pd(OAc)2 and 10 exhibited a higher efficiency than that of 9, 11, Ph2P(m-C6H4SO3Na) (TPPMS) or P(m-C6H4SO3Na)3 (TPPTS) for representative aryl bromides, chlorides, or triflates. The catalyst prepared in situ from Pd(OAc)2 (0.001mol%) and 10 (0.002mol%) achieved 96,000 TON in the reaction of p-tolylboronic acid with 4-bromoacetophenone in water.
- Nishimura, Masato,Ueda, Masato,Miyaura, Norio
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p. 5779 - 5787
(2007/10/03)
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