查询词典 allylation

Among the existing means to construct these synthetically and biologically important molecules, metal-mediated allylation and propargylation is one of the easiest and most convenient.

在现存的用来构建这些重要的合成子和生物分子的方法中，金属促进的羰基化合物烯丙基化和炔丙基化是最容易和最方便的。

Since the 1980s, it has been gradually realized that carbonyl allylation can even be achieved in aqueous media through a Barbier-type reaction.

自从20世纪80年代，化学家发现此类反应可通过Barbier-Type反应在水相中能够实现。

The electron transfer mediated asymmetric radical allylation reactions were investigated in details.

中文摘要本论文对电子转移引发的不对称自由基烯丙基化反应进行了研究。

Chiral compounds Ⅰ for the first time was applied to allylation of acylhydrazones with allyltrichlorosilane and the results showed that the compound Ⅰ can contribute to the occurrence of the reaction.

首次将手性化合物Ⅰ应用于烯丙基三氯硅烷和酰腙的烯丙基化加成反应中，结果表明化合物Ⅰ能够促进该反应的发生。

The asymmetric allylation of aldehydes is one of the most important methods for preparation of chiral homoallylic alcohol, which is the building block in organic synthesis of fine chemistry and drugs.

手性烯丙基醇是一类重要医药中间体，合成手性烯丙基醇的常见方法是醛的不对称烯丙基化反应。

The palladium-catalyzed allylation is a powerful tool for C-C, C-N, and C-O bond formation, which has been widely applied to organic chemistry.

藉由钯催化烯丙基化反应合成碳—碳键、碳—氮键和碳—氧键是非常有利的方法，主要是因为它在有机化学上广泛的应用性。

Selective allylation of the linear, cyclic and mixed diketones in the presence of water by allyl bromide and metallic zinc have been successfully achieved.

本文报道锌参与下水相介质中对称双酮及混合双酮的选择性烯丙基化反应的研究。

This article summarizes the latest research progress of the allylation reaction mediated by metals in aqueous media, and the new reaction mechanism is explained briefly.

本文综述了水相中金属参与烯丙基化反应的最新研究进展，并对新的反应机理作了简要的阐述。关键词：谢斌，冯建申邹立科，张秀兰

The allylation reactions of aldehydes with allyl bromide were carried out in 76%～93% yields with Nd-SnCl2-H2O under ultrasound irradiation at room temperature for 50～60 min.

在Nd-SnCl2-H2O体系中，用烯丙基溴超声诱发下进行了一系列芳香醛的烯丙基反应，室温反应50～60min得76%～93%烯丙基化产物；而不用超声波时同样体系中搅拌3～4h高烯丙基醇产率为30%～86%。

It was found that the asymmetric induction level of H〓-MAP was exclusively higher than that of corresponding MAP. Under the optimized reaction conditions, the allylation product could be obtained in up to 90.9% ee with H〓-MAP having 3, 5-xylyls as chiral inducer.

发现H〓-MAPs比MAPs类配体取得了更好的不对称诱导效果，在优化的反应条件下，可以得到90.9％ee值的产物，大大高于文献中报道的MAPs配体的最好结果（73％ee）。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新