酰化

In addition, the alkylation and acylation of product 31 were alsoinvestigated which furnished simple procedures for its further structural modifications.

此外，还研究了化合物31的烷基化和酰基化反应，并为其进一步结构改造提供了简便方法。

E. value of productions were detected by high performance liquid chromatography. Results The chiral aminoalcohol ligand compound Ⅰ can promote the asymmetric allylation of acylhydrazones and the yield was 57%; The highest values of e. e. obtained for this reaction was 22%.

结果 手性氨基醇配体化合物Ⅰ能够促进烯丙基三氯硅烷和酰腙的烯丙基化加成反应，在它的辅助作用下，烯丙基化加成产物的产率可达到57%，对映体过量值最高达到22%。

The surface of the MWNTs treated by acid could graft triethylene-tetramine groups successfully by amidation route.

酸处理的碳管经进一步酰胺化反应可在表面接枝三乙烯四胺，实现碳管的胺功能化。

Catalytic aziridination and amidation reactions are two important reactions in organic synthesis and useful building blocks for organic synthesis, which make them attractive synthetic targets in their own right.

催化氮杂环丙烷化及酰胺化反应是有机合成中的两类重要反应，是有机合成之砌块，其合成方法是重要的研究课题。

To avoid the hydrolyzation of the expressed product by the cellular proteases and get more stable humanα-defensin it was attempted to express humanα-defensingenes in cyclic or amidation form.

为了避免表达产物水解，得到更稳定的人α-防御素，以环化形式和酰胺化形式表达人α-防御素基因。

Poly with sulfonic acid groups were readily synthesized with biphenol and 1,3-bis(4-fluorobenzoyl)benzene in the presence of excess potassium carbonate followed by sulfonation with chlorosulfonic acid.

以二氯二苯甲烷和2，6-二甲基苯酚为原料合成了含有阻碍基团的双酚单体，用此双酚单体和1，3-二(4-氟苯甲酰基苯)在无水碳酸钾存在的条件下反应制得聚芳醚酮，然后用氯磺酸磺化，控制反应条件，使磺酸基团恰好进入苯环对位，制得新型结构的磺化聚芳醚酮。

In addition,α-alkenoyl ketene--acetals mainly used as the synthons of 3C and 5C, theα-functionalized reactions of which just limited on some simple reactions, as bromination, nitration, acetylation. However, the understanding of the forming of C-C bond atα-position is far from enough.

另外，对于α-烯酰基二硫缩烯酮的研究则主要集中在其作为3C或5C合成子的研究上，其α-位的官能化研究只是停留在溴化、硝化、脱羧等简单的反应之上，而对α-位C-C键的形成还缺乏足够的认识。

The results of the analysis of the pectin extracted show ed that the degree of free and Salted forms, the degree of amide substitution,and the degree of esterification of carboxy groups were 85.1%, 1.1%, and 13.8%,...

我们对蚕粪果胶的分析表明，其羧基的游离及成盐程度、酰胺化程度、酯化程度分别为85.1％、1.1％和13.8％，甲氧基含量、半乳糖醛酸含量分别为1.79％和81.5％；特性粘度为267。

The new surfactant was synthesized from the main starting materials such as lauric acid, p-cresol, chlorosulphonic acid and ethylene diamine, by 5 classic reactions which are acyl chlorination, esterification, Fries rearrangement, sulfonation and condensation, with total yield of 58%.

作者以十二酸、对甲酚、氯磺酸、乙二胺等为主要原料，共采取了酰氯化、酯化、Fries重排、磺化和缩合等5步经典的单元反应，合成了该表面活性剂，总收率为58％，并探讨了各步反应的条件对收率的影响。

The composite catalyzercan effectively catalyze cyclize reaction on the sysnthesis of N-phenyl maleimide.The yield of NPMI arrives at 90%,and the purity is 98.15%.

合成N-苯基马来酰亚胺的最佳工艺条件为；原料摩尔配比为1；1.2；溶剂为20；1；初期反应温度为40～50℃，环化反应温度为135℃；环化时间为2h。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。