The combination of a bulky aliphatic phosphine, e.g. tricyclohexylphosphine or the tetrafluoroborate salt of tri-tert-butylphosphine, with the Pd(0) complex of a 15-membered triolefinic macrocycle is an excellent catalyst for the Suzuki cross-coupling of aryl and heteroaryl bromides and chlorides. The palladium can be recovered in the form of the initial complex.
Retraction: Suzuki-Miyaura Coupling of Aryl Tosylates and Mesylates in Water
作者:Jan Pschierer、Herbert Plenio
DOI:10.1002/ejoc.201000251
日期:2010.5
fluorenylphosphane (cataCXium Fsulf) enables thefacile Suzuki–Miyauracoupling of various (heterocyclic) aryl tosylates and aryl mesylate with various (heterocyclic) boronic acids in excellent yields (> 95 %) using water as the reaction solvent. Retraction: The following article from the European Journal of Organic Chemistry, “Suzuki–MiyauraCoupling of Aryl Tosylates and Mesylates in Water”, published online on
水溶性磺化芴基磷烷 (cataCXium Fsulf) 的钯配合物 (0.5 mol-%) 使各种(杂环)芳基甲苯磺酸酯和甲磺酸芳基酯与各种(杂环)硼酸以优异的产率(> 95 %)进行轻松的 Suzuki-Miyaura 偶联) 使用水作为反应溶剂。撤回:以下文章来自欧洲有机化学杂志,“Suzuki-Miyaura Coupling of Aryl Tosylates and Mesylates in Water”,于 2010 年 4 月 15 日在线发表于 Wiley 在线图书馆(www.onlinelibrary.wiley.com,doi:10.1002 /ejoc.201000251) 和印刷中 (Eur. J. Org. Chem.2010, 2934–2937),经通讯作者、期刊编辑、Haymo Ross 博士和 Wiley-VCH 同意撤回。由于手稿中列出的几个 1H 和 13C
A General Palladium Catalyst System for Suzuki−Miyaura Coupling of Potassium Aryltrifluoroborates and Aryl Mesylates
作者:Wing Kin Chow、Chau Ming So、Chak Po Lau、Fuk Yee Kwong
DOI:10.1021/jo100846t
日期:2010.8.6
The first general examples of palladium-catalyzed Suzuki-type cross-coupling of aryl and heteroaryl mesylates with potassium aryl and heteroaryltrifluoroborates are presented. In addition to biaryl couplings, the cross-coupling reactions of arylmesylates with alkyl and vinyltrifluoroborate salts have also been successfully accomplished.
To provide a compound having an excellent cysteine protease inhibitory effect, and to provide a drug for treatment or prevention of the disease selected from the group consisting of osteoporosis, osteoarthritis, chronic rheumatoid arthritis, Paget's disease of bone, hypercalcemia, bone metastasis of cancer, and ostealgia. A compound represented by formula (1) or a pharmaceutically acceptable salt thereof, or a drug or pharmaceutical composition containing the same as an effective component.
versatile method for functionalizing carboxylic groups on the nanotubes' surface. In this current research, we have developed a functionalization method via the Vilsmeier–Haack reaction using 2,2′-bisthiophene-4-carboxaldehyde and POCl3 as chemically reactive reagents. These coatings should improve the electro-conductivity and mechanical properties of both INTs-WS2 and IFs-WS2 inorganic nanomaterials