In chapter 4 an abnormal reaction that the nitro group of 1-aryl-2-nitroethenescan be easily replaced by the organic moity of FG-RZnI using Ni〓 and tertiaryamine as catalyst was first given. The experimental results show that in the presenceof catalytic amount of Ni〓 and tertiary amines, the reaction of FG-RZnI andl-aryl-2-nitroethenes give the substitution products l-aryl-l-alkene, instead ofMichael addition products.

通過實(shí)驗(yàn)發(fā)現(xiàn)毛片在线不卡，在催化量的Ni〓及叔胺催化下欧美在线AⅤ精品， l-硝基-2-芳基乙烯與烷基碘化鋅并不進(jìn)行Michael加成反應(yīng)亚洲视频免，而是發(fā)生1-硝基-2-芳基乙烯中硝基被取代的反應(yīng)日韩午夜无码精品试看爱情，生成了高產(chǎn)率的1-芳基-l-烯烴古装观看一级古装A片，由于此反應(yīng)的原料易得超碰碰人人摸97、反應(yīng)條件溫和、產(chǎn)物的產(chǎn)率高性无码专区一级，因而是合成l-芳基-1-烯烴的有效方法樱花影院成人入口免费观看网站。

In the arylation reaction, the temperature was meliorated from -40℃ to -15℃, which could be easy controlled with ice-salt bath. Furthermore, the reaction could be carried out reposefully by adding the initiator.

其中在以2，5-二氟溴苯格氏試劑進(jìn)行芳基化反應(yīng)時(shí)又色又爽又黄的黄网站18禁，改進(jìn)了反應(yīng)條件黄色日韩福利网站，克服了文獻(xiàn)使用的低溫條件(-40℃)，簡(jiǎn)便了操作，同時(shí)通過加入合適的引發(fā)劑在线黄色网站大全，使反應(yīng)能夠平穩(wěn)進(jìn)行来部一级毛片。

The first synthetic route uses 1,2,4-trimethoxybenzene and chloroacetonitrile in forming 2,4,5-trimethoxy-a-chlor-acetophenone under the anhydrous condition, then the intermediate condensates with papaverine forming the core pyrro[2,l-a]isoquinoline, followed by formation and lactonization to form the lactone ring. The second synthetic route uses prepared aldehyde with prepared ethyl nitroacetate by Knoevenagel condensation to obtain 2-Nitro-3-(2,4,5-tris-methoxy-phenyl)-acrylic acid ethyl ester and 2-Nitro-3-(2,4,5-tris-benzyloxy -phenyl)-acrylic acid ethyl ester etal intermediates. The lamellarin skeleton could arise from condensation of the papaverine and these intermediates by Michael reaction, the ester group is provided for subsequent lactonization. The third synthetic route uses coumarin or indan-l,3-dione derivatives and papaverine to form lamellarin under basic conditions.

第一條路線首先從1，2日韩黄片AV，4-三甲氧基苯出發(fā)與鹵乙腈作用合成鹵代芳酮中間體国产普通话对白精品视频，然后與罌粟堿反應(yīng)合成開鏈片螺素，最后經(jīng)乙?7一级毛片全部免费播放；疉片免费首页在线观看、去保護(hù)、成內(nèi)酯環(huán)得到片螺素99久久九九国产精品；第二條路線由制備的芳醛和制備的硝基乙酸乙酯經(jīng)縮合得到2-硝基-3-芳基丙烯酸乙酯国产精品2022免费无码视频，然后由該中間體與罌粟堿反應(yīng)，在完成關(guān)環(huán)的同時(shí)也引入酯基饥渴熟妇高潮喷水，最后去保護(hù)亚洲综合免费、成內(nèi)酯環(huán)得到片螺素；第三條路線是由香豆素或茚二酮出發(fā)美女污疼视频网站，經(jīng)溴代后的中間體與罌粟堿反應(yīng)亚欧中国国产在线观看AV，得到片螺素的基本框架。

By means of molecular designing, a series of sodium branched-alkyl benzene sulfonates weresynthesized through seven process, involving Frieded-Crafts reaction, Grignard reaction, sulfonationand neutralization. Those isomers have similar structure, carbons of same quantity, but the position ofalkylaryl dissimilarity. Liner fat acid, metaxylene and halogenated hydrocarbon of different carbonnumber were used as the starting materials. Optimum processing condition was confirmed consideringinfluence of a series of reaction factors such as feed proportioning, quantity of catalysts, quantitysolvent, reaction time, temperature and pressure. Eight kinds of isomers of sodium hexadecylxylolsulfonates were finally synthesized, and characterized by FT-IR.

本文通過分子設(shè)計(jì)黄色在线网站视频，以不同碳數(shù)直鏈脂肪酸欧美丰满大乳乳液在线观看网站免费、間二甲苯以及不同碳數(shù)的鹵代烷為原料，經(jīng)跏只雌?024精品国产；只破瑆ww、格氏反應(yīng)日韩欧美入口三、加氫還原久久r热这里有精品视频、磺化及中和等反應(yīng)，合成了結(jié)構(gòu)相似欧美AAAA在线视频播放、烷烴鏈碳數(shù)一定国产交换配乱婬视性色aV、芳基在烷烴鏈不同位置的烷基芳基磺酸鹽同分異構(gòu)體；并考察了原料配比wwwaaa827com、催化劑用量欧美456正片、反應(yīng)時(shí)間、反應(yīng)溫度A片在线观看网站、溶劑用量深夜在线网址在线观看网站大全、反應(yīng)壓力等一系列因素對(duì)各反應(yīng)的影響，進(jìn)而確定最佳工藝條件国产在线精品一区二区在线看，最終合成出十六烷基二甲苯磺酸鈉的八種同分異構(gòu)體看片a免费观看视频大片，利用 FT-IR 對(duì)產(chǎn)物結(jié)構(gòu)進(jìn)行了分析。

This review on organobismuth chemistry is carried out as the following four aspects:(1) the molecular structure characteristics and synthesis of new organobismuth compounds;(2) as reagents for cross-coupling, oxidation, arylation, and other reactions;(3) as catalysts for organic synthesis;(4) as medicines for the treatment of ulcers, anti-tumor and radio-therapy, etc.

本文回顧了近10多年來有機(jī)鉍化學(xué)的研究狀況，主要從以下4個(gè)方面進(jìn)行綜述：(1)新型有機(jī)鉍化合物的合成途徑與結(jié)構(gòu)特征国产原创在线观看网站免费下载；(2)有機(jī)鉍化合物作為交聯(lián)偶合日韩欧美性交、氧化、芳基化和其它反應(yīng)的試劑色五月亚洲AⅤ综合在线观看；(3)作為催化劑免费性生活福利视频；(4)作為生物醫(yī)藥用于潰瘍、腫瘤和放射治療等国广一级黄色网站。

Using classical diazotisation of anilines, 5-(4-aminophenyl)-10,15,20-triphenyl-porphyrin was converted to a series of meso-tetraarylporphyrins with different substituents, including 5-(4-hydroxylphenyl)-10,15,20-triphenylporphyrin (80%), 5-(4-chlorophenyl)-10,15,20-triphenylporphyrin (74%), 5-(4-iodinphenyl)-10,15,20-triphenylporphyrin (76%), 5-(4-hydrazinephenyl)-10,15,20-triphenylporphyrin (67%) and 5-(4-bisphenyl)-10,15,20-triphenylporphyrin (32%). Therefore an efficient way of synthesizing unsymmetrically substituted TAPs was developed.

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A new convenient synthesis of a series of 1-aryl-2-propanones using aromatic amines as precursors, via diazo reaction and improved Meerwein arylation reaction under mild conditions, was achieved. In addition, 1-[3,5-bisphenyl]-2-propanone is a new compound among the synthesized compounds. This approach is an efficient synthetic method for the aryl-propanones with the different substituting groups.

以芳香胺為原料，經(jīng)重氮化和改進(jìn)的Meerwein芳基取代反應(yīng)一区毛片，合成了一系列的1-芳基－2-丙酮九九r热網站，其中1-（3，5-二三氟甲基苯基）2-丙酮是一個(gè)新化合物改進(jìn)后的方法簡(jiǎn)化了合成步驟中文国产原创在线观看网站，提高了收率女人高潮一级AA片视频，可方便地用于在苯環(huán)上具有不同取代基的芳基丙酮的合成。

Under these conditions several aryl iodides bearing a wide range of functional groups were converted into the corresponding aryl azides in good yields.

在重新優(yōu)化后的條件下国产1000黄色网站，大部分不活潑芳基溴化物可以與疊氮化鈉發(fā)生交叉偶聯(lián)反應(yīng)得到良好收率的芳基疊氮化合物、WWW4438，但是有拉電子基團(tuán)取代的芳基溴化物與疊氮化鈉的偶聯(lián)反應(yīng)則難以進(jìn)行。

Under these conditions several aryl iodides bearing awide range of functional groups were converted into the corresponding aryl azides in good yields.

在重新優(yōu)化后的條件下欧美一区性爱视频，大部分不活潑芳基溴化物可以與疊氮化鈉發(fā)生交叉偶聯(lián)反應(yīng)得到良好收率的芳基疊氮化儲(chǔ)蓄型投資銀條合物8888永久网站，但是有拉電子基團(tuán)取代的芳基溴化物與疊氮化鈉的偶聯(lián)反應(yīng)則難以進(jìn)行在线国产主播专区第一页。

The recent research progress of oxidation carbonylation of amines/β-amino alcohols, alkoxycarbonylation of epoxides, carbonylative Suzuki coupling, carbonylative Sonogashira, and double carbonylation of aryl iodides has been presented, focusing on the carbonylation reactions studied by us in the past few years, with 81 references.

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