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。
1-(Aromatic- or heteroaromatic-substituted)-3-(heteroaromatic substituted)-1,3-propanediones and uses thereof
申请人:——
公开号:US20030229079A1
公开(公告)日:2003-12-11
Certain 1-(aromatic- or heteroaromatic-substituted-3-(heteroaromatic substituted)-1,3-propanediones are described as inhibitors of HIV integrase and inhibitors of HIV replication. These compounds are useful in the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described.
Development of the Direct Suzuki–Miyaura Cross-Coupling of Primary <i>B</i>-Alkyl MIDA-boronates and Aryl Bromides
作者:Jeffrey D. St. Denis、Conor C. G. Scully、C. Frank Lee、Andrei K. Yudin
DOI:10.1021/ol500057a
日期:2014.3.7
The development of a palladium-catalyzed sp3–sp2 Suzuki–Miyaura cross-coupling of B-alkyl-N-methyliminodiacetyl (B-alkyl MIDA) boronates and (hetero)aryl bromides is reported. This transformation is tolerant of a variety of functional groups (F, NO2, CN, Cl, COCH3, and CHO). B-Alkyl MIDA boronates allow an efficientcross-coupling reaction directed toward the synthesis of unsymmetrical methylene diaryls
Aza-and polyaza-naphthalenly ketones useful as hiv integrase inhibitors
申请人:Zhuang Linghang
公开号:US20050010048A1
公开(公告)日:2005-01-13
Certain aza- and polyaza-naphthalenyl ketones including certain quinolinyl and naphthyridinyl ketones are described as inhibitors of HIV integrase and inhibitors of HIV replication. These compounds are useful in the prevention or treatment of infection by HIV and the treatment or the delay in the onset of AIDS, as compounds or pharmaceutically acceptable salts, or as ingredients in pharmaceutical compositions, optionally in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating or delaying the onset of AIDS and methods of preventing or treating infection by HIV are also described.
Electrochemical reductive acylation of (η6-arene)Cr(CO)3 complexes and (benzophenone)[Cr(CO)3]2
作者:C. Degrand、M. Bikrani、B. Gautheron
DOI:10.1016/0022-328x(86)84038-4
日期:1986.1
The electrochemicalreductiveacylation of (benzophenone)Cr(CO)3 and (benzophenone) [Cr(CO)3]2 has been performed in DMF, by electrochemicalreduction of complexed ketones in the presence of acetic and benzoic anhydride in excess. Three complexed benzhydryl esters ArCH(OCOR)PhCr(CO)3, (Ar = Ph, R = Me: Ar = PhCr(CO)3, R = Me; Ar = PhCr(CO)3, R = Ph) were obtained in 46–57.5% yields after purification