Part 2. Annulation reaction of 3, 4-dichlorocoumarin (1) and 3, 4-dichloromaleimide (8) by a new general annulation strategy developed in this group with 2-phenylbenzofuran (15), 3-phenylbenzofuran (16), 2, 5-diphenyloxazole (17), 2, 5-diphenylthiazole (18), 2-methyl-4-phenylthiazole (19) and 2, 3-dimethoxy-1, 3-butadiene (40) were investigated.

二。在本課題組前一階段提出的從二氯代環(huán)烯酮與1日日色综合色色，1-二芳基乙烯的光化反應(yīng)以及光化反應(yīng)中得到的環(huán)丁烷產(chǎn)物的連續(xù)電環(huán)化反應(yīng)對(duì)3久久精品视频色，4-二氯馬來(lái)酰亞胺以及3黄片有限公司，4-二氯香豆素進(jìn)行增環(huán)反應(yīng)的工作基礎(chǔ)上，研究了3操人人看人人摸人人插，4-二氯香豆素（1）和3无遮挡一级毛片视频免费的，4-二氯馬來(lái)酰亞胺（8）與5個(gè)α-苯基取代的環(huán)烯烴2-苯基苯并呋喃（15），3-苯基苯并呋喃（16）黄片毛片你人黄片毛片，2黄色免费在线网观看，5-二苯基噁唑（17），2黄片在线免费看啊啊啊，5-二苯基噻唑（18）中文字幕欧美亚洲，2-甲基-4-苯基噻唑（19），以及一個(gè)丁二烯——2福利视频免费观看，3-二甲氧基丁二烯（40）進(jìn)行的芳香族增環(huán)反應(yīng)国产城中村风韵犹存在线播放。

Chapter two: Using 5-(4-aminophenyl)-10,15,20-triphenylporphyrin as thestarting compound, the classical diazotization of aniline and the resulting reaction ofdiazo salts were applied to porphyrin for the first time, and a series of asymmetriclysubstituted meso-tetraarylporphyrins including 5-(4-chlorophenyl)-10,15,20-triphenylporphyrin, 5-(4-iodinphenyl)-10,15,20-triphenylporphyrin, 5-(4-cyanophenyl)-10,15,20-triphenylporphyrin, 5-(4-bisphenyl)-10,15,20-triphenylporphyrin and 5-(4-hydroxylphenyl)-10,15,20-triphenylporphyrin were synthesized.

第二章：在已合成的5-(4-氨基苯基)-10，15男女激情一区二区视频，20-三苯基卟啉基礎(chǔ)上国产成人精品日本亚洲语音，首次將芳胺的重氮化及重氮鹽反應(yīng)應(yīng)用于卟啉，合成了5-(4-氯苯基)-10播放一级毛片无码免费播放，15，20-三苯基卟啉全国产在线、5-(4-碘基苯基)-10迷j白嫩玩弄灌醉在线视频，15，20-三苯基卟啉秋霞超碰淫乱c、5-(4-氰基苯基)-10尤物成人最新电影在线观看网站视频，15，20-三苯基卟啉黄色AA网站、5-(4-聯(lián)苯基)-10影音先锋你懂，15，20-三苯基卟啉和5-(4-羥基苯基)-10再线观看黄色网站，15日韩一级AAAAAAAA毛片，20-三苯基卟啉等一系列不對(duì)稱取代的meso-四芳基卟啉。

This is exactly opposite to the order of E465/E665 in HA and the order ofΔ~ K. It shows that the larger the extent of humification, the larger the effect for reducing the rate of Phoxim hydrolysis, because the extent of HA humification is closely related to the extent of benzene in HA and the amount of carbonyl, aryl, phenolic hydroxide.

因腐殖酸腐殖化程度與腐殖酸芳構(gòu)化程度中文字幕第一页第二页在线视频精品、羧基免费欧美网黄色网站、羰基和酚羥基的含量等相關(guān)，因此用腐殖酸腐殖化程度反映腐殖酸對(duì)農(nóng)藥水解作用大小比僅用腐殖酸中有機(jī)碳含量等因素反映更為合理秋霞手机在线视频观看。

In this thesis, investigations focused on heteropoly acids-catalyzed C-C and C-N bond formation reactions and the synthesis of xanthenediones and acridinediones under thermal conditions are described.1.12-Phosphotungstic acid has been used as an efficient,eco-friendly,and air- and moisture-stable catalyst to promote the direct dehydrative substitution of the hydroxy group of benzylic and allylic alcohols with variousβ-dicarbonyl compounds.

本篇論文主要描述了雜多酸催化下的C-C和C-N鍵的生成又粗又大又长的免费视频，以及無(wú)溶劑直接加熱下合成十氫氧雜蒽二酮和9-芳基十氫吖啶二酮。主要內(nèi)容如下：13级A片网站。在磷鎢酸催化下亚洲视频中文字幕黄色，1精液射一嘴视频免费观看，3-二羰基化合物與醇能夠順利偶合，脫除一分子的水91在线国内极品在线播放，生成烷基化的1黄色视频在线播视频观看免费，3-二羰基化合物。反應(yīng)在甲苯中進(jìn)行時(shí)18岁一下禁止观看网站，二芳基甲醇能與各類1谁有最新黄色网址，3-二羰基化合物反應(yīng)，成率很高进网站看黃色A片；但對(duì)于1-苯乙醇色色色色一吧色色99二区，只能得到很低的產(chǎn)率。

Chapter 3: Synthesis of 2-aroyl-l,3,5-triaryl-4-carbethoxy-4-cyanocyclohexanols from chalcones with ethyl cyanoacetate is carried out in excellent yields with KF/basic alumina as catalyst under ultrasound irradiation.

第三章：研究了超聲輻射下啊啊啊啊用力插视频，以堿性氧化鋁固載氟化鉀為催化劑色色色色色色色色淫视频，利用查耳酮和氰乙酸乙酯合成2-芳酰基-1久久黃片，3欧美aaaav，5-三芳基-4-乙酯基-4-氰基環(huán)己醇。

Studing on samarium diiodide promoted asymmetric intramolecular reducing coupling reactions, we have made the resolution of the racemic biaryl dials by using enantiomeric N-tert-butanesulfinamine as the resolving reagent successfully and thus obtained a series of axially chiral biaryl dials with high enantiomeric excess.

中文摘要在二碘化釤促進(jìn)的分子內(nèi)不對(duì)稱還原偶聯(lián)反應(yīng)中亚洲一区二区三区福利视频，我們不僅對(duì)聯(lián)芳基二醛底物的合成路線進(jìn)行了優(yōu)化91免费观看视频，還發(fā)現(xiàn)N-叔丁基亞磺酰胺輔基可以作為手性試劑，成功地對(duì)聯(lián)芳基骨架二醛化合物進(jìn)行拆分丰满饥渴东北老熟女，得到高對(duì)映體過(guò)量的軸手性二醛類化合物欧美.日韩.欧洲。

A one-step method for the synthesis of aromatic indolizine derivatives byintramolecular 1,5-dipolar cyclization reaction of 2-(2-arylethenyl)pyridinium N-ylidesin the presence of an oxidant has been studied for the first time. In the presence ofelectron-deficient olefins, however, 2-(2-phenylethenyl)pyridinium N-ylides underwent1,3-dipolar cycloadditions and then aromatized in situ by TPCD to produce indolizinederivatives, indicating 1,3-dipolar cycloaddition proceed more readily than 1 ,5-dipolarcyclization in these conditions. Pyridinium disubstituted N-ylides, readily obtainedfrom corresponding pridinium and β-chlorovinyl ketone, underwent thermalintramolecular 1,5-dipolar cyclization to give indolizine derivatives easily.Indolizinecarbaldehyde derivatives were synthesized starting from 2-pyridinecarbaldehyde in four-steps involving 1,3-dipolar cycloaddition reaction.

本文首次研究了2-(2-芳基乙烯基)吡啶N-葉立德在氧化劑存在下的分子內(nèi)1，5-偶極環(huán)化反應(yīng)久久另类，采用一鍋法合成了中氮茚衍生物最大黄色网站；研究了這些N-葉立德的1，5-偶極環(huán)化和1色色色色色色色色色色色色色狼操屄，3-偶極環(huán)加成反應(yīng)的選擇性中文日韩精品第56页在线观看视频，發(fā)現(xiàn)當(dāng)有缺電子烯烴存在時(shí)，優(yōu)先進(jìn)行1操逼免费性爱网站，3-偶極環(huán)加成反應(yīng)福利视频网，而不再發(fā)生分子內(nèi)1，5-偶極環(huán)化反應(yīng)免费视频插到爽；由β-氯乙烯酮方便地得到了烯丙基N-葉立德日韩三级片毛片，他們?cè)诩訜釙r(shí)進(jìn)行分子內(nèi)1，5-偶極環(huán)化反應(yīng)而得到中氮茚衍生物亚洲视频第一；由2-吡啶甲醛為起始原料一区二区三区在线播放美女精品，通過(guò)1，3-偶極環(huán)加成反應(yīng)等四步反應(yīng)91精品国产91久久无码，得到了重要的中氮茚甲醛衍生物人人色网站，這些反應(yīng)都具有條件溫和和操作簡(jiǎn)便的特點(diǎn)欧美操逼网，是合成中氮茚衍生物的新方法。

A new convenient synthesis of a series of 1-aryl-2-propanones using aromatic amine s as precursors, via diazo reaction and improved Meerwein arylation reaction under mild conditions, was achieved.

以芳香胺為原料www.7788欧美,com，經(jīng)重氮化和改進(jìn)的Meerwein芳基取代反應(yīng)久久99久久精品97久久综合，合成了一系列的1-芳基-2-丙酮，其中1-(3看中国农村的黄色视频，5-二三氟甲基苯基)-2-丙酮是一個(gè)新化合物色呦呦。。日本。

Based on the experimental results, it could be consequentially concluded that N-methoxycarbonylation of aromatic amines was followed by the exclusive N-methylation of methyl N-aryl carbamates during the reaction process.

苯環(huán)上有鈍化基團(tuán)的一級(jí)芳胺反應(yīng)活性比較好，獲得N-甲基-N-芳基氨基甲酸甲酯的產(chǎn)率較高打飞专用高潮老熟妇网站大全，反應(yīng)時(shí)間也較短综合精品国产孕妇专区；而苯環(huán)上活化基團(tuán)的存在，則會(huì)降低一級(jí)芳胺的反應(yīng)活性黄色免费成人A片午夜。

Reaction of the insertion adducts with epoxide s and α,β unsaturated esters in THF HMPA afforded the corresponding unsymmetrical selenides, respectively.

硒插入芳基鋅的C—Zn鍵產(chǎn)生對(duì)應(yīng)的芳基硒化鋅18se视频在线观看，它與環(huán)氧或α，β不飽和酯在溫和的條件反應(yīng)生成對(duì)應(yīng)的不對(duì)稱的硒醚