Moreover, the polymeric arsine palladium(0) complex is an efficient catalyst for the carbonyl allylation of aldehydes and the coupling reaction of aryl halides with terminal alkynes or Grignard reagent.

該聚合物負(fù)載的胂鈀(0)配合物還是醛的羰基烯丙基化及芳基鹵化物與端炔加勒比综合网站、Grignard試劑的交叉偶聯(lián)反應(yīng)的有效催化劑久久久久亚洲精品中文字幕A片。

To investigate the influence of surfactant molecular structure on micellization in solution, we used molecular dynamics to simulate the molecular structure and interaction of three alkyl aryl sulfonates in vacuum and in solution.

為研究不同結(jié)構(gòu)的表面活性劑分子在溶液中膠束化能力的差異亚洲永久精品愉拍自拍，采用分子動(dòng)力學(xué)方法模擬三種烷基芳基磺酸鹽在真空和水溶液環(huán)境下的結(jié)構(gòu)與相互作用粉嫩极品国产在线播放。

The catalytic performance of MDA on a Mo/HZSM-5 catalyst derived from the HZSM-5 zeolite prepared from soluble glass is better than that derived from the HZSM-5 zeolite prepared from silicon gel.

由水玻璃合成的HZSM-5分子篩制得的Mo基催化劑超彭免费，其甲烷無氧芳構(gòu)化性能優(yōu)于由硅溶膠合成的HZSM-5分子篩制得的Mo基催化劑国产美女高潮流白浆视频18。

Second, using DBU as the base for enolization of propargylic esters of unsaturated acids 18e-k, we developed a tandem Ireland-Claisen rearrangement /isomerization reactions. It has been shown that the reaction sequence affords triene molecules 42a-b and 43a-b in moderated to high yields. Interestingly, with allyl hexa-3,5-dienoates 18i-j as the substrate, the rearranged products underwent further aromatization to give uniquely substituted benzyl acids 44a-b.

其次，以含有活潑質(zhì)子的烯酸炔丙酯18e-k為底物欧美BBW撒尿特写，在DBU為烯醇化堿国产日B视频网站、TMSCl為硅試劑的條件下，底物18e-h發(fā)生了Ireland-Claisen重排/異構(gòu)化串聯(lián)反應(yīng)国产一区清纯美女在线观看，得到完全共軛的三烯類化合物42a-b及43a-b国产h视频网站在线视频；而以己二烯酸炔丙基酯18i-j為底物時(shí)，重排/異構(gòu)化后的產(chǎn)物進(jìn)一步發(fā)生電環(huán)化等反應(yīng)最終得到芳構(gòu)化產(chǎn)物——取代苯甲酸類化合物44a-b欧美不卡一区二区三区手机。

Poly{[2-(4-biphenylamino)phenyl]phenylenevinylene} was prep-ared with 4-nitroanline which was coupled with p-xylene,throughreduction最新亚洲日韩中文字幕在线播放一区二区、idionization、Ullmann reaction全国在线无码精品、bromization乱子国产刺激、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，即聚{ 2-[4-苯基]苯撐乙烯}是以對(duì)硝基苯胺為原料bbixx.com，其與對(duì)二甲苯經(jīng)改良的Gomberg-Bachmann反應(yīng)偶聯(lián)直接在线观看黄色视频主页、再通過還原、碘化国产色视频一区、Ullmann反應(yīng)亚洲热在线视频店、溴化、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)性能国产不卡久久精品影院尤物，共由以下六部分組成：1色色av无码、亞甲基環(huán)丙烷類化合物與苯硫氯、苯硒氯及二苯基二硒的反應(yīng)人妻在线交插；2欧美黄色小视频在线、亞甲基環(huán)丙烷類化合物開環(huán)產(chǎn)物的偶聯(lián)反應(yīng)；395免费视频、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)国产春色一级视频免费；4、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)激情小说另类；5国产福利在线99、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)；6可以直接免费观看的黄色网址、醋酸碘苯促進(jìn)的亞甲基環(huán)丙烷類化合物一级毛片A片免费播放、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1，3-偶極環(huán)加成反應(yīng)亚洲性h视频在线观看。

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久久久毛片久久久，3-b：3'，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)生的溴鋰交換好吊操97在线视频；2用LDA對(duì)二噻吩并[2黄片拍拍视频免费视频强奸，3-b：3'，2'-d]噻吩去質(zhì)子化作用久久九九手机板看a片免费视频。

In chapter 2, the Michael additions of functionalized organozinc iodides with α,β-unsaturated aldhydes, ketenones, esters and l-aryl-2-nitroetheneshave been investigated in the presence of Cu〓/ 2LiCl.

第二章主要研究了在低毒免费无码不卡a片、穩(wěn)定、易得操人免费网站、價(jià)廉的Cu〓存在下97爱爱，帶官能團(tuán)的有機(jī)碘化鋅與α，β-不飽和醛国产原创激情在线观看网站视频下载、酮欧美高清不卡A片快爽、酯及1-硝基-2-芳基乙烯的Michael加成反應(yīng)，并探討了反應(yīng)機(jī)理啪啪精品福利。

Thirdly, The preparation of 3-aryl-5-substituted-ethenyl isoxazoles and l-isoxazolyl-2-isoxazolinyl substituted-ethenes was developed through 1, 3-dipolar cycloaddition of nitrile oxides,α-alkylation reaction and another 1, 3-dipolar cycloaddition of nitrile oxides based on polystyrene-supported propargyl selenide.

三一级电影三级电影、從聚苯乙烯負(fù)載的炔丙基硒醚出發(fā)，經(jīng)過腈氧化物的1超碰aⅴ人人做人人爽，3-偶極環(huán)加成反應(yīng)www.日韩.com、α-烷基化反應(yīng)和腈氧化物的1，3-偶極環(huán)加成反應(yīng)固相分別合成了3-芳基5-取代--乙烯基異噁唑和1—異噁唑—2—異噁唑啉取代的-乙烯在线看高清无码免费www.。

We investigated fluoroalkylation of 5,10,15-triarylporphyrins with fluoroalkyl halides by sulfinatodehalogenation system.

本章研究了在亞磺化脫鹵反應(yīng)條件下5在线观看你懂的网站免费不卡，10，15-三芳基卟啉的氟烷基化反應(yīng)，并對(duì)反應(yīng)條件進(jìn)行了優(yōu)化黄色网站国产网址。