Integration of electrooxidative cyclization and chemical oxidation via alkoxysulfonium ions. Synthesis of exocyclic ketones from alkenes with cyclization
Schiff bases containing ferrocenyl and thienyl units and their utility in the palladium catalyzed allylic alkylation of cinnamyl acetate
作者:David Pou、Ana E. Platero-Prats、Sonia Pérez、Concepción López、Xavier Solans、Mercè Font-Bardía、Piet W.N.M. van Leeuwen、Gino P.F. van Strijdonck、Zoraida Freixa
DOI:10.1016/j.jorganchem.2007.07.027
日期:2007.10
The synthesis and characterization of two new ferrocenyl Schiff bases: [Fc-CHN–(CH2)n–(C4H3S)] (2) Fc represents (η5-C5H5)Fe(η5-C5H4)– and n = 1(2a) or 2(2b)} containing the thienyl (C4H3S) group are reported. NMR studies indicate that 2 have the anti-(E) conformation in solution and the X-ray crystal structure of 2a confirms that it also adopts the anti-(E) form in the solid state. Ligands 2 have
的合成和两个新的二茂铁席夫碱表征:[Fc的CHN-(CH 2)ñ - (C 4 H ^ 3 S)(2)的Fc表示(η 5 -C 5 H ^ 5)的Fe(η 5 -据报道含有噻吩基(C 4 H 3 S)基团的C 5 H 4)-和n = 1(2a)或2(2b)} 。NMR研究表明2在溶液中具有抗-(E)构象,并且2a的X射线晶体结构确认它也采用固态的抗-(E)形式。使用2-甲基丙二酸二乙酯钠作为亲核试剂,在钯催化的乙酸(E)-3-苯基-2-丙烯-1-基(肉桂基)的烯丙基烷基化反应中对配体2进行了测试。的反应2与[加入Pd(η 3 -1-PH-C 3 H ^ 4)(μ-Cl)的] 2稍微过量K的存在[PF 6 ]制备[将Pd(η 3 -1-PH- C 3 H 4)Fc-CHN–(CH 2)n-(C 4 H 3S)}] [PF 6 ] n = 1(5a)或2(5b)},它们是该催化过程
Direct Allylation of Active Methylene Compounds with Allylic Alcohols by Use of Palladium/Phosphine-Borane Catalyst System
The C−C bond formation between active methylene compounds and allylic alcohols has been newly developed by using a palladium complex as a catalyst together with a phosphine‐borane ligand. The best phosphine‐borane ligand for this direct allylation has been revealed to be Ph2P(CH2)4(9‐BBN) to produce a variety of desirable allylated products in high yields.
Remarkable rate enhancement of palladium-catalyzed allylic alkylation in water using a colloidal dispersion system
作者:Shū Kobayashi、William W.-L Lam、Kei Manabe
DOI:10.1016/s0040-4039(00)01027-3
日期:2000.8
The rate of palladium-catalyzed allylic alkylation was dramaticallyenhanced in a colloidal dispersion system created by a neutral surfactant, Triton X-100, in water.
作者:Ana E. Platero-Prats、Sonia Pérez、Concepción López、Xavier Solans、Mercè Font-Bardía、Piet W.N.M. van Leeuwen、Gino P.F. van Strijdonck、Zoraida Freixa
DOI:10.1016/j.jorganchem.2007.06.016
日期:2007.9
(1a) with palladium(II)–allyl complexes [Pd(η3-1R1,3R2-C3H3)(μ-Cl)]2 R1 = H and R2 = H (2), Ph (3) or R1 = R2 = Ph (4)} is reported. Treatment of 1a with 2 or 3 in a molar ratio Pd(II):1a = 1} in CH2Cl2 at 298 K produced [Pd(η3-3R2-C3H4)FcCHN–CH(Me)(Ph)}Cl] R2 = H (5a) or Ph (6a)}. When the reaction was carried out under identical experimental conditions usingcomplex 4 as starting material no evidence
对映体纯ferrocenylimine(的反应性的研究小号Ç) - [FcCHN-CH(Me)中(PH)] FC =(η 5 -C 5 H ^ 5)的Fe (η 5 -C 5 H ^ 4) - }(图1A)与钯(II) -烯丙基配合物[将Pd(η 3 -1R 1,3R 2 -C 3 H ^ 3)(μ-Cl)的] 2 R 1 = H和R 2 = H(2)中,Ph(3)或R 1 = R 2 = Ph(4)}。治疗1a用2或3 的摩尔比Pd(II):1A = 1}在CH 2氯2在298K产生的[将Pd(η 3 -3R 2 -C 3 H ^ 4)FcCHN-CH(Me)中(PH )} Cl] R 2 = H(5a)或Ph(6a)}。当反应使用复杂的相同的实验条件下进行4作为起始原料,没有证据为[钯形成(η 3 -1,3-PH 2 -C 3 H ^ 3)FcCHN-CH(Me)中(PH)
Novel pyridopyprimidinone derivatives which are HM74A agonists
申请人:Conte Aurelia
公开号:US20070275987A1
公开(公告)日:2007-11-29
The invention is concerned with novel pyridopyrimidinone derivatives of formula (I):
wherein R
1
to R
8
, X, Y, m and n are as defined in the description and in the claims. The compounds of the present invention are HM74A agonists with improved properties compared to niacin and can be used for the treatment and/or prevention of diseases such as dyslipidemia, atherosclerosis, diabetes, metabolic syndrome, and other related diseases associated with HM74A.