Synthesis and Characterization of Pentaerythritol-Derived Oligoglycol and Their Application to Catalytic Wittig-Type Reactions
作者:Kai Li、Li Ran、Yi-Hua Yu、Yong Tang
DOI:10.1021/jo049701v
日期:2004.5.1
approach. Quantitative 13C NMR proves to be an efficient tool for the characterization of oligoglycols. The corresponding telluride of oligoglycol 17 is synthesized and used as a good catalyst for Wittig-typereactions in preparing both disubstituted and trisubstituted οlefins in good to high yields.
几种具有游离羟基的季戊四醇衍生的低聚乙二醇1可以通过收敛方法容易地制备。定量13 C NMR被证明是表征低聚乙二醇的有效工具。合成了相应的低聚乙二醇17的碲化物,并将其用作Wittig型反应的良好催化剂,以高收率或高收率制备二取代和三取代的烯烃。
3,5-Bis(trifluoromethyl)phenyl Sulfones for the Highly Stereoselective Julia–Kocienski Synthesis of α,β-Unsaturated Esters and Weinreb Amides
作者:Diego A. Alonso、Mónica Fuensanta、Enrique Gómez-Bengoa、Carmen Nájera
DOI:10.1002/ejoc.200800041
日期:2008.6
l)phenyl (BTFP) sulfones tert-butyl α-(BTFPsulfonyl)acetate (4) and Weinreb α-(BTFPsulfonyl)acetamide (5) have successfully been employed in the Julia–Kocienski olefination of aldehydes with K2CO3 as the base at 120 °C in DMF under solid/liquid phase-transfer catalysis conditions to afford α,β-unsaturated esters and Weinrebamides, respectively. The corresponding products were obtained in good yields
SUBSTITUTED N-ARYLETHYL-2-ARYLQUINOLINE-4-CARBOXAMIDES AND USE THEREOF
申请人:Bayer Aktiengesellschaft
公开号:US20200031775A1
公开(公告)日:2020-01-30
The present application relates to novel substituted N-arylethyl-2-arylquinoline-4-carboxamide derivatives, to processes for preparation thereof, to the use thereof alone or in combinations for treatment and/or prevention of diseases, and to the use thereof for production of medicaments for treatment and/or prevention of diseases, especially for treatment and/or prevention of fibrotic and inflammatory disorders.
Synthesis and ring openings of cinnamate-derived N-unfunctionalised aziridines
作者:Alan Armstrong、Alexandra Ferguson
DOI:10.3762/bjoc.8.199
日期:——
tert-Butyl cinnamates are aziridinated with high trans-selectivity by an N-N ylide generated in situ from N-methylmorpholine and O-diphenylphosphinyl hydroxylamine. The resulting N-unfunctionalised aziridines are shown to be versatile synthetic building blocks that undergo highly selective ring-opening reactions with a wide range of nucleophiles.
肉桂酸叔丁基酯通过由 N-甲基吗啉和 O-二苯基膦基羟胺原位生成的 NN 叶立德以高反式选择性进行氮丙啶化。所得的 N-未官能化氮丙啶被证明是通用的合成构件,可与各种亲核试剂进行高度选择性的开环反应。
Cinnamoyl Inhibitors of Tissue Transglutaminase
作者:Christophe Pardin、Joelle N. Pelletier、William D. Lubell、Jeffrey W. Keillor
DOI:10.1021/jo8004843
日期:2008.8.1
inhibitors of guinea pig liver transglutaminase. The most effective inhibitors evaluated can be sorted into two subclasses: substituted cinnamoyl benzotriazolyl amides and the 3-(substituted cinnamoyl)pyridines, referred to more commonly as azachalcones. Kinetic evaluation of both of these subclasses revealed that they display reversible inhibition and are competitive with acyldonor TGase substrates at IC50