The influence of different substituents to the addition reaction also has been investigated to research into the reaction law.

優(yōu)化得到各駐點的幾何構(gòu)型91综合久久婷婷久久，通過振動分析和內(nèi)稟反應(yīng)坐標(biāo)對過渡態(tài)進行了確認，解析了反應(yīng)路徑在线观看黄色视频毛片。

Addition reaction is an organic reaction , it occurs in a double bond or triple bond of the substance.

加成反應(yīng)是一種有機化學(xué)反應(yīng)亚洲综合一区二区精品久久，它發(fā)生在有雙鍵或叁鍵的物質(zhì)中。

By means of GC, GC-MS, GC-IR, the reaction products were investigated and the results showed that there are triylene, camphene, limonene, p-cymene, terpinolene -terpinene,-terpinene,-fenchyl formate, linalyl formate, terpinyl formate, bornyl formate and isobornyl formate containing in the products,and linalyl formate was first discovered in addition reaction of a -pinene and formic acid .The content of the main product terpinyl formate is up to 60.4%,the selectivity is 64.5%.

采用GC加勒比无码HEZYO、GC-IRwww.偷、GC-MS等對反應(yīng)產(chǎn)物進行定量和定性分析，結(jié)果表明：微波輻射下α-蒎烯與甲酸的反應(yīng)產(chǎn)物含有三環(huán)烯亚洲色图欧美日韩、莰烯欧美中文自拍另类、對-傘花烴、α-松油烯先锋影音网址、γ-松油烯美女被艹69、檸檬烯、異松油烯毛片全部免费播效、甲酸葑醇酯国产AV妓女影院、甲酸異龍腦酯、甲酸龍腦酯91干干、甲酸芳樟酯欧美性XXXX69、甲酸松油酯。

We investigate the reaction involving alkynes and α-halophenylethanone in presence of catalyzer to occur nucleophilic addition reaction.

我們還對炔烴與α-鹵代苯乙酮在催化劑存在下發(fā)生親核加成反應(yīng)做了一系列的探索三级国产欧美性爱片。

The addition reaction of diazo pyrazoles and isocyanate has been investigated and the mechanism of this reaction has been guessed.

研究了重氮基吡唑同異氰酸酯的環(huán)加成反應(yīng)野狼福利视频，初步推測了該反應(yīng)的機理。利用此反應(yīng)設(shè)計了一類可能具有生物活性的吡唑駢[5亚洲欧美另类片专区，1-d][1男女晚上看的国产在线视频，2，3自拍偷拍第，5]四嗪-4-酮類衍生物外国黄色视频免费观看。

Analyse and compare what adopt a variety of pair of methods, the Michael addition reaction of ester of acerbity second of second of hydroxyl of protection of benzyl of the response of close nucleus addition that uses second nitrile and ester of formic acid second certainly, chloridize, cyanogen, reaction that take off carboxyl generates 3- benzyl oxygen radical the fifth of the ten Heavenly Stem the method of 2 nitrile, detailed discussion the action that wait and the by-product that arise possibly reach the reactant in each pace reaction, activator, dissolvent avoid a method.

通過對多種方法的分析和比較，確定采用乙腈和甲酸乙酯的親核加成反應(yīng)国产欧美在线一区,二区三区、氯化芐保護羥基内射美女处女视频、氰乙酸乙酯的Michael加成反應(yīng)、脫羧反應(yīng)生成3-芐氧基戊二腈的方法，并具體的討論了每一步反應(yīng)中反應(yīng)物美女网站操视频、催化劑超碰在线亚洲黄色、溶劑等的功能和可能產(chǎn)生的副產(chǎn)物及避免方法。

The dissertation mainly consists of two parts:1. The Reaction Chemistry of Alkynes under Palladium Catalysis Part 1 studies the reaction α,β-unsaturated carbonyl compounds with alkenylpalladium intermediate generated by nucleopalladation, and discovered 1 the Pd-catalyzed tandem addition reaction of halides, alkynes and α,β-unsaturated carbonyls,2 the four-component tandem addition reaction of halides, alkynes and α,β-unsaturated carbonyls, 3 the tandem intramolecular oxypalladation-conjugate additionreaction of alkynoic acids with α,β-enals. These new reactions provide notonly efficient highly stereoselective methods for the synthesis of γ,δ-unsaturated,polyunsaturated carbonyl compounds and γ-lactonic aldehydes, but also thebasic transformations for a number of C-C bond formation reactions which can be usedto design synthesis of many acyclic, cyclic or polycyclic compounds.

本論文的主要工作分為兩個部分：一一级a爱片在线观看视频免费、鈀催化下炔烴的反應(yīng)化學(xué)在本小組前人工作的基礎(chǔ)上国产精品床在线观看爽爽，我們詳細研究了炔烴親核鈀化產(chǎn)生的烯基鈀中間體與α，β-不飽和羰基化合物的反應(yīng)www.uuu26com，發(fā)現(xiàn)兩價鈀催化下鹵離子-炔烴-α一级国产黄色av，β-不飽和醛酮的串聯(lián)加成反應(yīng)、鹵離子-炔烴-α婷婷国产天堂久久综合五月，β-不飽和醛酮的西組分串聯(lián)加成及炔酸分子內(nèi)氧鈀化-串聯(lián)Michael型加成反應(yīng)毛茸茸性交；由此發(fā)展了γ，δ-不飽和醛酮岛国片在线播放、多不飽和羰基化合物和帶有醛酮基側(cè)鏈的γ-丁內(nèi)酯衍生物的高立體選擇性合成方法被操到舒服无码，這一過量鹵離子存在下的烯基鈀對α，β-不飽和羰基化合物共軛加成反應(yīng)的發(fā)現(xiàn)看全色黄大色黄女女，為大量碳-碳鍵形成反應(yīng)的實現(xiàn)提供了基礎(chǔ)久视频网无码性一区，使我們能夠從這一基本反應(yīng)出發(fā)，設(shè)計和開發(fā)多種分子內(nèi)人人人操人人爽、分子間的碳碳成鍵反應(yīng)淫荡AV，以好的立體、區(qū)域選擇性組建開鏈黄色网站免费在线观看啊啊啊、環(huán)狀及多環(huán)類型的化合物亚洲欧美另类中文字幕。

For example,the addition reaction with small molecular,the metathetical reaction with alkynes and Wittig reaction to prepare high-valent transtion-metal allenylidene complexes.

對于化合物11，詳細研究了其與小分子加成反應(yīng)免费人成视频网站在、炔烴復(fù)分解反應(yīng)以及通過Wittig反應(yīng)制備高價態(tài)過渡金屬丙二烯基卡賓化合物草草影院www色欧美极品。

Effects of microwave power, reaction time, reaction temperature, solvent etc. on reaction were studied by a single factor tests. The results show that maleic acid is more active than fumaric acid; the introduction of methyl group on the double bond can weak the reactivity of the Michael addition reaction; the ester base is more propitious to complete the Michael addition reaction than the nitrile base.

為研究微波下邁克爾反應(yīng)的規(guī)律，本文采用單模聚焦微波有機合成儀最新婷婷99毛片精品视频，通過對順丁烯二酸黄色三级片地址91视频、反丁烯二酸和氨水合成DL-天冬氨酸、順式3-甲基丁烯二酸和氨水合成3-甲基天冬氨酸精品国产一区二区三区免费看、丙烯酸甲酯和氨水合成β-丙氨酸簧网站在线观看网站永久、丙烯腈和氨水合成β-氨基丙腈等五個反應(yīng)對邁克爾加成反應(yīng)進行了研究。

Halogen, proton acids, sub-halogen acid are electrophilic reagents, olefin addition reaction is the electrophilic addition reaction .

鹵素人人操人人干人人叫、質(zhì)子酸三级A片想干就干，次鹵酸等都是親電試劑，烯烴的加成反應(yīng)是親電加成反應(yīng)黄色视频黄片。