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We attached for the first time -NOBIN to Frechet-type dendron units. The syntheses of 16 kinds of dendrimer-based NOBIN Schiff-base ligands were achieved in a straightforward manner by simple condensation of -NOBIN with the corresponding salicylicaldehyde derivatives, of which 12 belong to the dendritic Schiff-base ligands and 4 belong to the non-dendritic Schiff-base ligands.

通过手性拆分获得了光学纯化合物NOBIN,首次将NOBIN手性单元连接到树枝状大分子中去,设计合成了四个系列16种新的NOBIN衍生的希夫碱三齿手性配体,其中4种为非树枝状手性希夫碱配体,12种为树枝状手性希夫碱配体。

These dendritic NOBIN derived Schiff base ligands have been applied to titanium catalyzed hetero-Diels-Alder reaction of Danishefshy's diene and aldehydes, affording the corresponding 2-substituted 2, 3-dihydro-4H-pyran-4-one in quantitative yields and excellent enantioselectivities (up to 97. 2%ee). Comparing the reactivities and enantioselectivities of reaction catalyzed by the titanium complexes of these Schiff base ligands, it was found that a series of ligands L〓 were superior to the other three series of ligands L〓, L〓 and L〓, a significant positive NLE and a dendrimer effect existed in the L〓 dendritic catalyst system. The disposition of the dendritic wedges and the dendron size in the ligands were observed to have a significant impact on the enantioselectivity of the reaction.

NOBIN衍生的树枝状大分子希夫碱手性配体与钛形成的配合物在催化不对称杂Diels-Alder反应中的应用将得到的四个系列NOBIN衍生的树枝状希夫碱三齿手性配体与四异丙氧基钛形成的配合物用于催化Danishefsky's diene与醛的不对称杂Diels-Alder反应,通过反应条件的优化,获得了定量的收率和最高达97.2%ee值的对映选择性;考察了这四个系列NOBIN衍生的树枝状希夫碱钛配合物的催化活性和对映选择性,结果发现它们的活性次序依次为L〓≈L〓>L〓>L〓,对映选择性次序依次为L〓>L〓>L〓>L〓。

In the thesis, a series of novel single and multi-armed oxadiazole bridging ligands and pyridyl-4, 5-imidazole dicarboxylic acid ligands have been synthesized. The coordination chemistry of these novel ligands with transition metal ions was investigated. In addition, two 1, 3, 4-oxadiazole bridging ligands end-capped by chelating Schiff-base coordination sites have been designed and synthesized. The coordination chemistry based on one of the two ligands with metal ions was primarily investigated.

本文报道了一系列新颖的含1, 3, 4-Oxadiazole杂环的单臂及多臂有机配体,研究了它们与过渡金属离子的配位反应化学;合成了吡啶基-4,5-咪唑二羧酸有机配体,研究了它们在水热条件下与过渡金属离子的配位反应化学;另外,还合成了1, 3, 4-Oxadiazloe杂环桥联的双Schiff-base有机配体,初步探讨了其与过渡金属离子的配位反应化学。

PPARα ligands suppressed OPN promoter actiity, and an actiator protein-1 consensus site conferred this repression. Oerexpression of c-Fos and c-Jun reersed the inhibitory effect of PPARα ligands on OPN transcription, and, in chromatin immunoprecipitation assays, PPARα ligands inhibited c-Fos and phospho–c-Jun binding to the OPN promoter.

PPARα配体可抑制OPN启动子活性,一个激活蛋白-1的一致序列位点与这种抑制有关。c-Fos和c-Jun的过表达可逆转 PPARα配体对OPN转录的抑制作用,并且在免疫沉淀实验中,PPARα配体可抑制c-Fos及磷酸化c-Jun与OPN启动子的结合。

Four bidentate NS ester ligands, two bidentate NS amide ligands, tridentate MBPA and tetradentate BMBPA ligands have been synthesized.

合成了四种含有酯基的NS二齿配体-CYE系列物,两种含有酰胺基的NS二齿配体,三齿配体MBPA和四齿配体BMBPA。

In order to investigate the relation between the ligands and rare earth ions, in this dissertation, two new polyaza cryptands, two new tripyrazolone ligands, a macrobicyclic rare earth cryptates, a tripyrazolone and a tripodal ligands rare earth complexes have been synthesized.

为了进一步研究和探讨穴醚、吡唑啉酮、三脚架化合物配体对稀土元素的配位作用,论文首次报道了两个新氮杂穴醚配体、两个新三脚架吡唑啉酮结构配体、一个系列大二环新型的稀土配合物、一个系列三脚架吡唑啉酮结构配合物、一个系列三脚架结构三酸配合物的合成。

Chiral ligands mentioned above and their complexes with acetate copper were used as enantio-selective catalysts in asymmetric cyclopropanation reactions of diazoacetate and 1,1-diphenyl ethylene. Investigations indicate that all of them reveal certain optical-selective capability, but chiral C2-symmetric 2,6-bispyridine ligands show better catalytic capability than chiral asymmetric schifF-base ligands.

选择了2个手性2,6-吡啶双噁唑啉配体和6个手性不对称席夫碱配体与醋酸铜形成的配合物作为催化剂,对重氮乙酸乙酯与1,1-二苯乙烯不对称环加成进行催化反应,发现这8个催化剂对1,1-二苯乙烯的不对称环丙烷化反应都表现出了一定的光学活性诱导能力,手性2,6-吡啶双噁唑啉-铜类具有比手性Schiff碱-铜类更好的催化性能。

I have uploaded a new job with a total of 100 ligands.

我已经上传了一组新的总数为 100 ligands的任务。

If it is still takes too long, we will reduce the number of ligands further.

如果它仍然很难算,我们将会更进一步减少 ligands 的数量。

I have deleted all of the previous jobs (1200, 600, 100 ligands) since they should have been processed by now.

我把以前所有的任务都取消了(1200、600、100 ligands),因为他们现在应该已经算完了。

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