In addition a series compounds of thiazole glycosides (17a~17f) were synthesized through 1-benzoyl-3-aryl-thioureas by phase-transfer catalysis method under mild condition.

另外又爽又刺激的视频网站，本文以1-苯甲趵抢亲酆暇镁镁镁米酆贤基-3-芳基硫脲為原料通過相轉(zhuǎn)移合成法合成了一系列噻唑類糖苷的衍生物(17a~17f)国产亚洲图片小说综合在线区。

Chapter 4 The unclassical products——1-substituted aryl-4-ethoxycarbonyl5-dimethylaminometheneamino-1, 2, 3-triazole were prepared under Vilsmier conditions, and the reaction mechanism was also studied.

第四章報(bào)道了在Vilsmier條件下非經(jīng)典產(chǎn)物—1-取代芳基-4-乙氧羰基-5-二甲基氨基甲叉氨基-1本国黄色网站特黄色的免费看的，2，3-三唑的合成及反應(yīng)的機(jī)理進(jìn)行了討論中文国产原创在线观看网站。

The invention relates to the synthesis of N-aryl group-3-(4-Beta-D-pyran allose glycoside phenyl)-5-formyl isoxazole-4-formamide and discloses a helicid derivative which can improve the functions of a central nervous system and the preparation method thereof; wherein, the compound has good sedative, hypnotic and anti-convulsant effects and is taken in the 2000 edition Chinese Pharmacopoeia with the drug name of helicid tablets.

N-芳基-3-(4-β-D-吡喃阿洛糖苷苯基)-5-甲跖烁叱币患禔A片视频；愡?4-甲酰胺的合成，發(fā)明公開了具有改善中樞神經(jīng)系統(tǒng)功能的豆腐果苷類衍生物国产1000黄色网站，及其制備方法、WWW4438。該類化合物具有良好的鎮(zhèn)靜、安眠欧美一区性爱视频、抗驚厥作用8888永久网站。目前已以藥品名&神衰果素片&被收入2000年版《中國藥典》国产噜噜观看。

The major contents in this thesis are described as follows:(1) Seven new thiol fluorescence reagents containing 2-phenylbenzoxazole (or 2-phenylbenzothiazole) derivatives or benzanthrone as fluorphore and iodinacetylamine or maleimide as reaction groups have been synthesized.

本論文的研究工作主要分為以下幾個(gè)方面：(1)以碘乙酰胺或馬來酰亞胺為反應(yīng)基團(tuán)和以2-芳基苯并噁唑類化合物或苯并蒽酮為熒光團(tuán)，首次合成了七種新的碘乙酰胺類和馬來酰亞胺類巰基熒光試劑日本黄色一级A片。

The detailed mechanisms of the electron transfer reactions of common coenzyme NADH model compounds were systematically investigated using o-allyloxy benzenediazonium salt as the probe.

應(yīng)用鄰位烯丙氧基取代的芳基重氮鹽作為探針国产三级片一区,二区在线，對(duì)輔酶NADH幾種最常用的模型化合物電子轉(zhuǎn)移反應(yīng)的過程和機(jī)理進(jìn)行了比較系統(tǒng)的考察。

Poly{[2-(4-biphenylamino)phenyl]phenylenevinylene} was prep-ared with 4-nitroanline which was coupled with p-xylene,throughreduction激情亚洲小说网、idionization只久久久久久久久久久、Ullmann reaction、bromization欧美中韩一区二区、condensepolymerizationto get the final product.

本文提出了兩條合成聚(2-芳基苯撐乙烯)的新路線日韩系列精品自拍视频在线观看，即聚{ 2-[4-苯基]苯撐乙烯}是以對(duì)硝基苯胺為原料，其與對(duì)二甲苯經(jīng)改良的Gomberg-Bachmann反應(yīng)偶聯(lián)人妻人操人人操人人插、再通過還原欧美熟女性爱图、碘化、Ullmann反應(yīng)日韩成人精品视频自拍、溴化亚洲一区二区三区性爱视频、縮聚反應(yīng)得到。

This dissertation is mainly focused on the reactivity of methylenecyclopropanes and comprises six parts. 1 The reactions of methylenecyclopropanes with phenylsulfenyl chloride, phenylselenyl chloride and diphenyl diselenide; 2 The coupling reactions of the ring-opening products derivated from methylenecyclopropanes; 3 The palladium-catalyzed ring-enlargement of mono-aryl group substituted methylenecyclopropanes to cyclobutenes. 4 The gold-catalyzed domino ring-opening and ring-closing hydroamination of methylenecyclopropanes with sulfonamides; 5 The Lewis acid-catalyzed reactions of mono-aryl group substituted methylenecyclopropanes with diethyl ketomalonate in the presence of water; 6 The iodobenzene diacetate mediated novel 1,3-dipolar cycloaddition of methylenecyclopropanes, vinylidenecyclopropanes, and methylenecyclobutane with phthalhydrazine.

本論文主要研究了亞甲基環(huán)丙烷類化合物的一些化學(xué)反應(yīng)性能av高清不卡，共由以下六部分組成：1、亞甲基環(huán)丙烷類化合物與苯硫氯在线观看中文字幕码2018、苯硒氯及二苯基二硒的反應(yīng)99人e视频这里精品；2、亞甲基環(huán)丙烷類化合物開環(huán)產(chǎn)物的偶聯(lián)反應(yīng)国产污污污在线观看免无毒；3十八岁禁黄色网站、單芳基取代的亞甲基環(huán)丙烷類化合物在鈀催化劑作用下的擴(kuò)環(huán)反應(yīng)；4免费观看黄页网站、金化合物催化磺酰胺對(duì)亞甲基環(huán)丙烷類化合物的串聯(lián)開環(huán)關(guān)環(huán)氨氫化反應(yīng)www.欧美亚洲精品；5、路易斯酸催化亞甲基環(huán)丙烷類化合物與丙酮二羧酸二乙酯在有水存在下的反應(yīng)最黄网站视频在线播放；6亚洲√a无码作爱、醋酸碘苯促進(jìn)的亞甲基環(huán)丙烷類化合物、亞乙烯基環(huán)丙烷類化合物及亞甲基環(huán)丁烷類化合物與鄰苯二甲酰肼的新型1先锋影音最新av资源网址，3-偶極環(huán)加成反應(yīng)国产青榴视频A片在线观看不卡成。

The organoboron compounds in this paper are based on triarylboranes, boronic acids and boronic esters. The structure-property relationship and sensing mechanism are elucidated. Organoboron compounds as Lewis acid can be used as fluoride probe with high sensitivity and selectivity because they have a unique LUMO in which the π-conjugation is divergently extended through the vacant p-orbital of the boron atom. The complexation of the boron π-electron systems with fluoride ion would interrupt the π-conjugation extended through the boron atom, causing the change of photophysical properties.

介紹了基于三芳基硼化合物、硼酸和硼酸酯的有機(jī)硼化合物在氟離子檢測(cè)中的應(yīng)用亚洲性爱视频网址，評(píng)述了這些化合物的結(jié)構(gòu)和檢測(cè)性能之間的關(guān)系欧美刺激a片影院，討論了檢測(cè)機(jī)理，即有機(jī)硼化合物中硼原子空的p軌道使其作為路易斯酸能夠選擇性地結(jié)合氟離子26uuu欧美日韩国产，硼原子與氟離子的結(jié)合破壞了硼中心與芳香取代基的p-π共軛A级黄色片在线免费观看，引起有機(jī)硼化合物光物理性質(zhì)的變化A片vi视频，從而實(shí)現(xiàn)對(duì)氟離子的高選擇性檢測(cè)。

Formylation and diformylation of dithieno [2,3-b:3',2'-d] thiophene were prepared by two methods. Firstly, aromatic carbanions were prepared by 1 Br/Li exchange of bromo dithieno[2,3-b:3',2'-d]thiophene with n-BuLi in THF at low temperature; 2 deprotonation of dithieno[2,3-b:3',2'-d]thiophene with LDA.

二噻吩并[2美女裸体扒开尿口桶到爽动态图，3-b：3'精品国产亚洲，2'-d]噻吩單醛與雙醛的制備首先通過兩種方法產(chǎn)生芳基負(fù)離子：1溴代并三噻吩在四氫呋喃中與正丁基鋰發(fā)生的溴鋰交換；2用LDA對(duì)二噻吩并[2亚洲欧美精品综合一区，3-b：3'黄色一区二区三，2'-d]噻吩去質(zhì)子化作用。

A series of 3 - aryl - 3 -( 5,5 - dimethyl - 3 - hydroxy - 2 - cyclohexene - 1 - one - 2 - yl) propanoic ester s were synthesized by reaction between aromatic aldehydes ,5,5- dimethyl -1,3-cyclohexanedione and isopropylidene malonate catalyzed by KF - Al2O3 in alcohols.

在KF-Al_2O_3催化下国产变态一级A片，將芳香醛3成年男女免费啪啪网站不卡，5-二甲基-1，3-環(huán)己二酮及丙二酸亞異丙酯在醇中反應(yīng)级特大黄片视频影院国产一级特，一鍋式合成了一系列的3-芳基-3-(5白白发布永久在线观看视频，5-二甲基-3-羥基-2-環(huán)己烯-1-酮-2-基)丙酸酯。