聚(偏二氟乙烯-co-(2-氧代-1,3-二氧戊环-4-基)甲基2-(三氟甲基)丙烯酸酯)无规共聚物,聚(VDF- co -MAF-cyCB),与MAF-cyCB通过VDF和MAF-cyCB的自由基共聚合成了59%的重量分数,MAF-cyCB是带有环碳酸酯侧链的甲基丙烯酸酯。该共聚物显示出纳米结构形态,其中富含PVDF的结晶域与无定形聚(VDF-co- MAF-cyCB)链段共存。通过向聚(VDF-共-MAF-cyCB)共聚物中加载各种量的LiClO 4,进一步获得固体聚合物电解质。将添加的锂盐溶解在聚(VDF- co-MAF-cyCB)非晶相,在最佳cyCB / Li +摩尔比为5的情况下,可以形成在室温下显示出高达2×10 -4 S cm -1的离子电导率值的离子导电相。 LiClO 4的最高cyCB / Li +摩尔比为5的比率也增加了结晶相和非晶相之间的相分离,材料的机械性能(在10
Manganese(<scp>iii</scp>)-promoted tandem phosphinoylation/cyclization of 2-arylindoles/2-arylbenzimidazoles with disubstituted phosphine oxides
作者:Shuai-Shuai Jiang、Yu-Ting Xiao、Yan-Chen Wu、Shu-Zheng Luo、Ren-Jie Song、Jin-Heng Li
DOI:10.1039/d0ob00877j
日期:——
1-a]isoquinolin-6(5H)-ones through manganese(III)-promoted tandem phosphinoylation/cyclization of 2-arylindoles or 2-arylbenzimidazoles with disubstituted phosphineoxides was developed. In this transformation, new C–P bond and C–C bond were constructed simultaneously under silver-free conditions, exhibiting a broad substrate scope. It was noted that not only diarylphosphine oxides but also dialkyl and arylalkyl-phosphine
一种简单实用的方法,通过锰合成磷酸取代的吲哚[2,1 - a ]异喹啉-6(5 H)-和苯并咪唑[2,1 - a ]异喹啉-6(5 H)-。III)促进了双芳基膦酸酯或2-芳基苯并咪唑与双取代氧化膦的串联膦酰基化/环化反应。在这种转变中,在无银条件下同时构建了新的C–P键和C–C键,具有广泛的底物范围。注意到不仅二芳基膦氧化物,而且二烷基和芳基烷基膦氧化物也符合条件。
Synthesis of Oxazinyl Analogues of Fosmidomycin Using RCM Methodology
作者:Christian Stevens、Sarah Van der Jeught、Nicolai Dieltiens
DOI:10.1055/s-2007-992373
日期:——
inhibition of 1-deoxy- D-xylulose 5-phosphate reductoisomerase, a key enzyme in the biosynthesis of isoprenoids through the nonmevalonate pathway. This paper describes the synthesis of a series of analogues in which the hydroxamate moiety is incorporated in a ring structure, leaving the complexation with the enzyme up to the oxygen lone pairs instead of the free hydroxyl group. The antimalarial activities
Fluorous (Trimethylsilyl)ethanol: A New Reagent for Carboxylic Acid Tagging and Protection in Peptide Synthesis
作者:Santos Fustero、Amador García Sancho、Gema Chiva、Juan F. Sanz-Cervera、Carlos del Pozo、José Luis Aceña
DOI:10.1021/jo052569u
日期:2006.4.1
a new fluorous tag (FTMSE) for the protection of carboxylic acids. Because mild conditions are employed in the tag cleavage (TBAF in the presence of 4 Å molecular sieves, which prevent racemization), this tag can be advantageously used in the synthesis of peptides and modified peptides, as we have demonstrated with several examples, including the fluorous synthesis of short α- and β-peptides as well
[EN] SILAHYDROCARBYL ESTERS OF 3-CHLORO-2-TRIFLUOROMETHYLPROPIONIC ACID, THEIR PREPARATION AND PREPARATION OF THE CORRESPONDING ACRYLIC ACID ESTERS<br/>[FR] SILAHYDROCARBYL ESTERS D'ACIDE 3-CHLORO-2-TRIFLUOROMÉTHYLPROPIONIQUE, LEUR PRÉPARATION ET PRÉPARATION DES ESTERS D'ACIDE ACRYLIQUE CORRESPONDANTS
申请人:DOW CORNING TORAY CO LTD
公开号:WO2009082027A1
公开(公告)日:2009-07-02
An organic silicon compound represented by the following general formula: ClCH2CH(CF3)COOR3Si(R1)n(R2)3-n (wherein, R1 independently designates the same or different substituted or unsubstituted hydrocarbon groups having 1 to 20 carbon atoms, R2 independently designates the same or different groups selected from halogen groups or hydrolysable groups having 1 to 20 carbon atoms, R3 designates substituted or unsubstituted alkylene groups having 1 to 20 carbon atoms, and 'n' is an integer from 0 to 3). The organic silicon compound is suitable for use as a preferable precursor in the manufacture of silanes that contain (2-trifluoromethylacryloxy) alkyl groups.
The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.