申请人:W.R. GRACE & CO. -CONN 더블유.알. 그레이스 앤드 캄파니-콘.(519980617737)
公开号:KR101589780B1
公开(公告)日:2016-01-28
본 개시내용은 중합체 제조를 위한 전촉매의 내부 전자 공여체로 적합한 실릴 에스테르 및 실릴 디올 에스테르를 제공한다. 전촉매 전구체, 및 실릴 에스테르 또는 실릴 디올 에스테르인 내부 전자 공여체로부터 형성된 전촉매 조성물을 개시한다. 전촉매 조성물은 공촉매 및 임의로 외부 전자 공여체 및/또는 활성 제한제와 함께 사용되어 지글러-나타 촉매 조성물을 형성할 수 있다. 본 발명의 촉매 조성물은 높은 촉매 활성을 나타내며, 넓은 분자량 분포, 우수한 굴곡 모듈러스 및 높은 이소탁틱도를 갖는 올레핀 기반 중합체를 형성한다.
This text appears to be a technical description related to catalysts and esters in the field of polymer synthesis. Here is the translation into Chinese:
该发明提供了适用于合成催化剂的内部电子供体的硅酯酯和硅酯二醇酯。该发明揭示了由催化剂前体以及硅酯酯或硅酯二醇酯作为内部电子供体形成的催化剂组合物。该催化剂组合物可以与辅助催化剂以及任意外部电子供体和/或活性限制剂一起使用,形成可用于Ziegler-Natta催化剂组合物的组合物。本发明的催化剂组合物表现出高催化活性,并形成具有广泛分子量分布、优异的弯曲模量和高异构度的烯烃基聚合物。
Intramolecular Diels−Alder Reaction of Chiral Silatrienes: Synthesis of 4a,7,8,8a-Tetrahydro-4-silaisochroman-1-ones
IntramolecularDiels−Alderreactions of chiral 2-silahexa-3,5-dienyl α,β-unsaturated esters have been found to afford tetrahydro-4-silaisochroman-1-ones in moderate yields. The best diastereoselectivity was achieved in the reaction of silatriene 8c, in which methyl and triisopropylsilyloxymethyl groups are attached to the silicon atom, with an acrylate as the dienophile under EtAlCl2-catalyzed conditions
Synthesis, antitumor activity, and chemical properties of silaplatin and related platinum(II) and platinum(IV) complexes derived from .beta.-silyl amines
作者:Wayne K. Anderson、Ravindra Kasliwal、D. Michael Houston、Yueh-sha Wang、Ven L. Narayanan、Rudiger D. Haugwitz、Jacqueline Plowman
DOI:10.1021/jm00019a008
日期:1995.9
cyclic complexes 2a ("silaplatin") and its Pt(IV) analogue, 2b, were very active against L1210 leukemia in vivo. Both the platinum (II) complex 2a and the platinum (IV) complex 2b produced a significant number of cures over the dose range 10-40 mg/kg. The platinum (II) complex 2a, silaplatin, was very active in vivo against an L1210 leukemia subline that was resistant to cisplatin; 2a was also active
制备了衍生自β-甲硅烷基取代的胺的铂(II)和铂(IV)配合物。测量所选复合物在水和生理盐水中的溶解度,并通过HPLC测定β-硅对复合物在水溶液中反应性的影响。将所选择的甲硅烷基络合物的稳定性与碳类似物进行比较。环状复合物2a(“ silaplatin”)及其Pt(IV)类似物2b在体内对L1210白血病具有很高的活性。铂(II)配合物2a和铂(IV)配合物2b在10-40 mg / kg的剂量范围内均产生了大量固化剂。铂(II)配合物2a硅铂在体内对抵抗顺铂的L1210白血病亚系具有非常高的活性。腹膜内注射2a时,对植入ic的L1210也有效。合成了环丁烷二羧酸配合物3c; m / z为1。该复合物对顺铂敏感和耐药的L1210白血病均具有活性,但效力不及类似的二氯化合物2a。合成了无环铂(II)和铂(IV)配合物1a,b,出乎意料地发现其在体内对L1210白血病无活性。制备了更多的亲脂性
Synthesis of silicon precursors of modified oligonucleotides
The synthesis of four silicon nucleoside analogues for use as modified antisense oligonucleotideprecursors, is described.
描述了用作修饰的反义寡核苷酸前体的四种硅核苷类似物的合成。
Complexes of iron and cobalt with new tripodal amido-polyphosphine hybrid ligands
作者:Matthew T. Whited、Eric Rivard、Jonas C. Peters
DOI:10.1039/b516046d
日期:——
Divalent complexes of iron and cobalt with new, monoanionic tripodal amido-polyphosphine ligands have been thoroughly characterized, and XRD analysis reveals geometries that are distinct for this class of ligand.