烯基

The results show that the brominated reaction is complete in 1.5 initial contact minutes,an...

结果表明，丁基橡胶的溴化过程只在最初的1.5min内，随着反应时间的延长及在碱性条件下反应，发生了分子结构的重排，即由溴代仲位烯丙基结构向更稳定溴代伯位烯丙基结构转移。

A series of pH- and temperature-sensitive hydrogels carrying pendant phosphategroups have been synthesized by copolymerizing 2-methacryloyloxyethyl dihydrogenphosphate with N-isopropylacrylamide. The swelling ratio, swelling and deswellingkinetics have been investigated. High loading percentage of lysozyme into hydrogelshas been achieved and the release profile has been studied.

通过N-异丙基丙烯酰胺和含磷酸基团的单体2-甲基丙烯酰乙氧基二氢磷酸酯的共聚合，合成了一类含磷酸基团的既对温度敏感又对pH敏感的水凝胶，研究了它们在不同pH及温度时的溶胀率及溶胀动力学，并初步研究了其对溶菌酶的释放行为。

Flame retardant ; bis-sulfone ; bis-sulfone ; etherizing ; phase transfer catalysis ; allyl chloride

阻燃剂；四溴双酚S双烯丙基醚；四溴双酚S ；醚化；相转移催化；烯丙基氯

The results showed that Kaidimycin was chemically neutral, macrocylic polylactones, stable and liable to dissolve into water and pyridine, slight to dissolve into methanol, ethanol and N-butanol, difficult to dissolve into ethyl acetate, acetone, benzene and chloroform. Chemical reaction of functional group of Kaidimycin showed that it had glycoside, amino acid and aldehyde, no reducing sugar, polypeptide and phenol.

凯地菌素属中等极性的、中性抗生素，极性纸层析结果与多烯类抗生素的纸层析结果相似：易溶于水、吡啶，微溶于甲醇、乙醇、正丁醇，不溶于乙酸乙酯、丙酮、苯、三氯化碳；对高温、光照和紫外处理有很好的稳定性；官能团反应试验结果发现，凯地菌素可能含有糖苷键、氨基酸伯氨基和醛基，不含有还原糖、多肽和酚基，高锰酸钾、浓硫酸反应与多烯大环内酯类抗生素的特性相似；并且依据纯品，采用生物法和分光光度法对摇床发酵液进行了效价的测定。

But very little literature concentrated on the activated methyl which closes to the carbonyl of enaminones. So the paper conducts the research to the aldol condensation of aromatic aldehydes with the activated methyl of enaminone.

但却很少有文献对烯胺酮类化合物的羰基α位活泼甲基进行研究，因此本论文对烯胺酮羰基α位活泼的甲基与芳香醛发生缩合反应进行了研究。

To improve the effect of CDCA on dissolving cholesterol gallstone, the water-soluble copolymers as polycarboxylic acid of comb-like copolymers and C_(60)-PCC were synthesized, which being used for modification of CDCA and strengthening effects of CDCA on dissolving the cholesterol gallstones by their entropy-repelled properties of comb-shaped side chains in buffers of phosphate and in model bile.The design theory of polymer was mainly employed to synthesis the conjugate of PCC-CDCA and C_(60)-PCC-CDCA by C_(60), polyoxyalkylene allylalkyldiether and maleic anhydride, which were copolymerized with AIBN as initiator, and then PCC or C_(60)-PCC were reacted with CDCA. The structures of the copolymers and the conjugates of PCC-CDCA and C_(60)-PCC-CDCA were confirmed with IR, TLC and TEM. The dissolving effects and the dissolution kinetics mechanism of cholesterol gallstone was inverstigated in PBS and in model bile of different cholesterol saturated index at pH7.4, including PCC-CDCA or C_(60)-PCC-CDCA.

利用高分子设计理论，以烯丙基聚氧乙烯基醚、顺丁烯二酸酐、C_(60)和CDCA为原料，以偶氮二异丁腈为引发剂，合成具有梳状侧链结构的梳状共聚物-CDCA结合物和C_(60)-梳状共聚物-CDCA结合物，以IR、TLC和TEM法表征共聚物的结构，并在pH7.4的PBS液和不同胆固醇饱和指数的模拟胆汁中进行溶石效果的研究，探讨在PBS液和不同CSI的模拟胆汁中结合物溶解胆固醇结石的效果和溶解动力学机制。

This novel reagent was treated with LDA to produce polystyrene-supported a-seleno carbanions, which reacted with alkyl halides and epoxides, followed by stereospecific selenoxide syn-elimination to give olefins and allylic alcohols respectively.

它与LDA反应形成α—硒基稳定的碳负离子，再与卤代烃或环氧化合物发生α—烷基化反应，烷基化后的树脂可以在30%的双氧水中进行氧化-消除，以良好产率和较高纯度合成了取代烯烃或烯丙基醇。

Allyl starch was prepared by etherification pretreatment of introducing allyl groups onto starch, and then AS-g-PMA was synthesized through graft copolymerization between allyl starch and methyl acrylate. The adhesion to fibers, sizing film and sizing performance of the blended size composed of AS-g-PMA and PVA-1799 were investigated. And the possibility by using AS-g-PMA to substitute PVA component was studied by contrast experiments.

摘〓要：通过烯丙基化变性对淀粉进行预处理制取烯丙基淀粉，再与丙烯酸甲酯进行接枝共聚合成接枝淀粉，文章探索了这种接枝淀粉与PVA1799混合浆的黏附、浆膜及浆纱性能，与目标配方进行比较，揭示出AS-g-PMA取代PVA的可能性。

A novel chiral diallylic diamine has been synthesized through double addition of allyl zinc bromide to chiral imines in this contribution.

通过烯丙基溴化锌对手性亚胺的两次不对称加成，合成了光活性的双烯丙基化的新型手性二胺。

RESULTS: Expression of iNOS proteins was seen on day 1 following the control stent implanting, developed on day 3, peaked on day 10 and lasted till day 28. iNOS expressions at all time points in diallyl trisulfide coated stent group were higher than those in control stent group. Compared with normal blood vessel tissue, the NO production after stenting decreased on day 1, increased on day 3, maximized on day 10, went down to its pre????stenting level on day 28. At all time points, NO levels in allitridi????stented sites were higher than those in control????

结果： 对照支架组术后1 d血管壁中有少量iNOS蛋白表达，3 d表达增加，10 d达高峰，28 d时仍有表达，二烯丙基三硫化物涂层支架组iNOS蛋白在各时间点的表达量均高于对照支架组；对照支架组术后1 d时NO生成量低于正常组织，3 d时NO水平升高，10 d时最高，28 d时降至基线水平，二烯丙基三硫化物涂层支架组各时间点的NO水平明显高于对照支架组。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。