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No obvious difference was observed when 6′-OH of isonucleoside was free or was protected by allyl group.

异核苷6′-OH处于游离和烯丙基保护状态时的结果没有显著差异。

The influence of reaction temperature and time to production rate of tertiary amine was discussed;and the infrared attribute to Dimethyl ammonium allyl chloride was also carried out.

讨论了反应温度和时间间隔对叔胺产率的影响,并对二甲基二烯丙基氯化铵进行了红外表征。

Application of 1, 1'-Planar chiral P, N -ligands into palladium-catalyzed allylic substitution

1, 1'-平面手性二茂铁膦氮配体在钯催化烯丙基取代反应中的应用

The solubility and the dissolution rate of cellulose in two ionic liquids with different structure AMIMCl and BMIMCl were investigated.

测定了纤维素在不同结构的离子液体——1-烯丙基-3-甲基咪唑氯化物和1-丁基-3-甲基咪唑氯化物中的溶解度和溶解速率。

The calculated adiabatic ionization potential is 8.18 eV, which is in excellent agreement with the experimental value. The result is helpful for identifying the allyl radical formed from other flames and for understanding the mechanism of soot formation.

计算的电离能与实验得到的电离能符合得很好,这一结果有助于今后鉴别和分析其它火焰中的烯丙基自由基,且对研究火焰燃烧机理有十分重要的价值。

Thus, the corresponding chiral sulfonium ylide was designed and its precursor was found to be readily available from the coresponing sulfide that was easily prepared from D-camphor in two steps.

从价廉易得的手性源 D-樟脑出发,合成了硫原子 b -位含有羟基的手性硅基烯丙基硫盐。

To our surprise we achieved the ligand 9, 11 and 29 with coordinating atoms fixing at benzylic and benzene ring positions, whose structure is unique in the planar chiral cyclophane chemistry.

以钯催化的烯丙基取代反应对配体进行了考察,硫醚或硒醚取代基在苄位取代的配体表现出更高的反应活性和更高的对映选择性,配体9和11均给出最高为94%的ee值。

A new fused polycyclic indoline compound was synthesized from aniline,with the key step of Pd-catalyzed tandem cyclization using hydroquinidine as the ligand and molecular oxygen as a green oxidant.

以芳香氨为原料,通过烯丙基化、重排、酰基化及钯催化的氧化环合反应合成了一种新的氮杂三环吲哚啉化合物,其结构经1H NMR,13C NMR,IR及HR-MS表征。

In the first part,we studied the nucleophilic addition reactions of aldehyde, amine,Zinc and benzyl bromide in one pot to afford homobenzyl and homoallyl amines in moderate to good yields.

第一部分的工作中,我们研究了Barbier型条件下醛,胺,锌粉,溴试剂一锅法的亲核加成反应。这种反应可以高效的得到高苄基和高烯丙基胺类化合物。

Copper iodide CuI has a apparent inhibition effect on addition rearrange of the Grignard reagent with carbonyl compounds.

为抑制烯丙基格氏试剂与羰基化合物加成反应中的重排反应,进行了碘化亚铜CuI对此类格氏试剂及加成产物组分比例关系的研究,CuI对这类化合物加成反应重排有明显的抑制作用。

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