金属羰基化合物

In Chapter Ⅰ, the Barbier type reactions of halides and carbonyl compounds promoted by metallic dysprosium were mainly studied.

第一章主要研究了金属镝促进下卤代物与羰基化合物的Barbier型反应。

But when the trimanganese tetrathiolated compound having a semicubic structure reacts with the cationic carbyne complexes 1 and 2, only some single-metal carbene complexes are isolated.

但当我们使用具有半立方烷结构的钼锰羰基化合物分别与阳离子卡拜络合物1和2反应时，只分离得到了一些单金属卡宾络合物。

The transition metal catalysis reduction, hydride reagents reduction, sodium dithionite reduction and bioreduction ware discussed.

综述了近年来α，β-不饱和羰基化合物α，β-碳碳双键和碳氧双键的选择还原研究进展，讨论了过渡金属催化还原、氢化试剂还原、连三亚硫酸钠还原以及生物还原。

Reaction of Carbonyl Compounds with Grignard and Organolithium Reagents.

有机金属试剂，活性和碱性，羰基化合物和格林试剂与有机锂试剂的反应。

Generally, these compounds are derived from accessible α–oxoketen dithioacetals and the common methods of preparation involve regioselective sodium borohydride 1,2-reduce of α–oxoketen dithioacetals, 1,2-nucleophilic addition of organomatals such as organomagnesium, organolithium, Reformatsky regent to α–oxoketen dithioacetals, Baylis-Hillman reaction between polarized ketene dithioacetals and aldehydes.

主要方法包括：使用硼氢化钠1，2-选择性还原α-羰基二硫缩烯酮；利用有机金属化合物（如有机镁试剂，有机锂试剂，Reformatsky试剂等）对α-羰基二硫缩烯酮进行1，2-亲核加成；通过α-羰基二硫缩烯酮与芳醛进行Baylis-Hillman反应等获得。

Alkyl manganese pentacarbonyl compounds5MnR (R = CH3, p-CH2C6H4CH3, p-CH2C6H4OCH3) were synthesized by metalation of manganese pentacarbony potassium salt with corresponding alkyl halides in ether. Photolysis of these with 1-2 equivalent of (CH3)2(C6H5)SiH or (CH3)(C6H5)2SiH in C6D6 solution at 5℃ produces silyl manganese pentacarbonyl compounds5MnSi(C6H5)(CH3)2 and5MnSi(C6H5)2(CH3) respectively (yield 70-88%).

用五羰基锰钾盐和相应的卤代物在乙醚中的金属化反应合成了五羰基锰烷基合物5MnR（R = CH3，p-CH2C6H4CH3， p-CH2C6H4OCH3 ），产率达到72-93％，将这些化合物与1-2当量(CH3)2(C6H5)SiH和(CH3)(C6H5)2SiH的C6D6溶液在5℃光解，分别得到五羰基锰硅烷基化合物5MnSi(C6H5)(CH3)2和5MnSi(C6H5)2(CH3)（产率达到70-88％）。

Previously, it was reported that the pinacol coupling of carbonyl compounds was achieved by zinc under strong base or weak acid condition.

曾经报道过金属锌在强碱介质或弱酸介质中，促进羰基化合物进行水相呐偶合反应。

In Chapter Ⅱ, the pinacol-coupling reactions of carbonyl compounds promoted by dysprosium were described. The reaction of ketones and aldehydes promoted by Dy/n-BuBr were proceeded in anhydrous THF which gave pinacol in high yield.

第二章研究了金属镝促进下羰基化合物的还原偶联反应，醛、酮在无水THF中与Dy/n-BuBr反应，可高产率地得到频哪醇。

This dissertation involves the syntheses, reactivities and structures ofGroup 6 metal carbonyl complexes containing the pyrazole ligands.

本论文开展了对含吡唑类配体的VIB金属羰基配合物的合成、反应及结构的研究，合成了70余个新化合物，并取得了如下研究成果。

The complexing properties of compounds 10a, 10b, 11a and 11b toward alkali metal ions were studied by 〓H NMR titration, ESI-MS, UV-Vis spectra, Fluoresence spectra and liquid-liquid extraction. The results show:(1) the 1:1 complexes were formed.(2) The calix-crown 10a, 11a have a higher selectivity for Na〓 ions, whereas 10b, 11b for K〓 ions.(3) The complexing ability toward alkali metal ions was enhanced when the calix-crown have side arm carbonyl.(3) The coordination of alkali metal ions toward phenoxy, carbonyl and crown ethereal oxygens take place by rotation around the carbon-carbon bond of carbonyl and methylene.

六，用〓H NMR滴定，ESI-MS，UV-Vis，Fluorescence，液-液萃取实验研究了10a，10b，11a和11b对金属离子的配位性质，研究结果表明：1）杯芳烃冠醚衍生物同碱金属离子形成了1：1配合物，化合物10a、11a对Na〓具有较高的配位能力，化合物10b、11b对K〓具有较高的配位能力；2）在杯冠醚环的旁边引入带有羰基氧原子的基团作为侧臂参与配位可以加强对碱金属离子的配位能力；3）金属离子分别同苯酚氧，羰基氧，聚氧醚链氧发生了配位，配位过程中侧链基团涉及到了羰基碳与亚甲基碳的碳碳键的旋转过程。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。