日韩欧美视频一区-日韩欧美三区-日韩欧美群交P内射捆绑-日韩欧美精品有码在线播放免费-成人免费一区二区无码视频-成人免费一级毛片在线播放视频

樹人論文網(wǎng)一個(gè)專業(yè)的學(xué)術(shù)咨詢網(wǎng)站!!!
樹人論文網(wǎng)
學(xué)術(shù)咨詢服務(wù)

Macroheterocycles

來源: 樹人論文網(wǎng) 瀏覽次數(shù):486次
所屬分區(qū):4區(qū)
ISSN:1998-9539
影響因子:1.112
是否開源:No
年文章量:74
研究方向:化學(xué)

Macroheterocycles雜志中文介紹

討論了含硫大雜環(huán)化合物的合成方法、結(jié)構(gòu)和光譜特征。以α,_-二鹵代烷與堿α,_-烷二硫醇反應(yīng),合成了含2-6個(gè)硫原子的12-42元大雜環(huán)。通過芳香族1,2-二硫醇或2-巰基酚與脂肪族α-二鹵代衍生物的反應(yīng),制備了含硫和氧原子的氧雜硫大環(huán)烷烴。硫大環(huán)烷烴的合成包括二甲醚或α,_烷二羧酸二氯化物與α,_烷二胺的反應(yīng),然后用LiAlh4或B2H6還原大雜環(huán)二胺。以二羧酸二氯化物與α,_-惡烷二胺反應(yīng),以及氯磺酰-β-內(nèi)酰胺與乙二醇反應(yīng)制備了氧雜氮雜大環(huán)烷,雙(溴甲基)取代芳烴與雙(巰基甲基)苯的反應(yīng)是合成低聚噻環(huán)烷的一般途徑。以2,6-雙(溴甲基)吡啶與α,_-烷烴二硫醇反應(yīng)制備了含硫環(huán)吡啶衍生物。對(duì)于含有一個(gè)、兩個(gè)或多個(gè)噻吩環(huán)的大環(huán)化合物的合成,基于-噻吩烷羧酸氯化物的分子內(nèi)和分子間酰化、2,5-雙(碳烷氧基烷基)噻吩的酰偶姻縮合和-鹵代烷基取代的噻吩β-酮酯的分子內(nèi)烷基化的一些步驟。研究了含二硫化物和多硫化物的大雜環(huán)化合物的合成路線。合成過程中,均三甲苯或1,3-二甲氧基苯與二硫二氯化物或二硫二氯化物硫化,并氧化二硫醇,以1,3,5-三(巰基烷基)苯與三(溴代烷基)-甲烷或L,3,5-三[4-(巰基甲基)苯基]-苯的反應(yīng)為基礎(chǔ),合成了雙和三丙烯基環(huán)化合物。以1,3,5-三-[4-(溴甲基)苯基]苯為原料,研究了含硅、碲或鐵的含硫大雜環(huán)化合物的合成方法,并用X射線衍射、核磁共振、紅外光譜、紫外光譜等分析結(jié)果,討論了含硫大雜環(huán)化合物的結(jié)構(gòu)及其導(dǎo)電性和磁性。

Macroheterocycles雜志英文介紹

Synthetic methods for, and structural and spectroscopic characteristics of sulfur-containing macroheterocycles are discussed. The synthesis of oligothiamacrocycloalkanes is based on the reaction of α, ò-dihaloalkanes with alkali α,ò-alkanedithiolates to form 12-42-membered macroheterocycles with 2-6 sulfur atoms in the ring. Oxathiamacrocycloalkanes containing sulfur and oxygen atoms in the ring have been prepared by reaction of aromatic 1,2-dithiols or 2-mercaptophenols with aliphatic α-ò-dihalo derivatives. The synthesis of thiamacrocycloalkanes involves the reaction of dimethyl ethers or α,ò-alkanedicarboxylic acid dichlorides with α,ò-alkanediamines followed by reduction of the macroheterocyclic diamides with LiAlH4 or B2H6. Oxathiaazamacrocycloalkanes have been prepared in a similar way by reaction of dicarboxylic acid dichlorides with α,ò-oxaalkanediamines as well as by reaction of chlorosulfonyl-β-lactams with glycols.A general synthetic route to oligothiacyclophanes is the reaction of bis-(bromomethyl) substituted arenes with bis-(mercaptomethyl)benzenes. Analogously, sulfur-containing cyclopyridinophanes have been prepared by reaction of 2,6-bis(bromomethyl)pyridine with α,ò-alkanedithiols. For the synthesis of macrocyclic compounds containing one, two, or several thiophene rings, some procedures based on intra-and intermolecular acylation of ò-thienylalkanecarboxylic acid chlorides, acyloin condensation of 2,5-bis(carbalkoxyalkyl)thiophenes, and intramolecular alkylation of ò-haloalkyl substituted β-keto esters of the thiophene series have been developed.Synthetic routes to macroheterocycles containing di-and polysulfide groups are discussed. The synthesis involves sulfurization of mesitylene or 1,3-dimethoxybenzene with disulfur dichloride or sulfur dichloride as well as the oxidation of dithiols.The synthesis of bi-and trimacrocyclic compounds is based on the reaction of 1,3,5-tris(mercaptoalkyl)benzenes with tris(bromoalkyl)-methanes or l,3,5-tris[4-(mercaptomethyl)phenyl]-benzene with 1,3,5-tris-[4-(bromomethyl)phenyl] benzene.Some methods for the synthesis of sulfur-containing macroheterocycles containing silicon, tellurium, or iron are considered.The structures of the sulfur-containing macroheterocycles are discussed using the results of X-ray diffraction, H NMR, IR, and UV spectroscopy as well as their electroconductive and magnetic properties.

Macroheterocycles影響因子

主站蜘蛛池模板: 香蕉动漫库 | 理论片午午伦夜理片影院 | 老外的好大c的我好爽 | 久久久久久亚洲精品影院 | 色就色 综合偷拍区欧美 | 日本ccc三级 | 国产精品热久久高潮AV袁孑怡 | 做你的爱人BD日本 | 久久综合网久久综合 | 精品亚洲永久免费精品 | 麻豆国产人妻欲求不满 | 国产精品久久人妻无码网站一区L | av视频在线免播放观看 | 最新在线黄色网址 | 人人澡人人擦人人免费 | 91免费网站在线看入口黄 | 60岁老年熟妇在线无码 | 国产午夜亚洲精品不卡电影 | 十八禁啪啦啪漫画 | 成人免费一级毛片在线播放视频 | 国产69精品久久久久乱码 | 99久久无码一区人妻A片蜜 | 亚洲免费网站观看视频 | 国产偷国产偷亚洲高清人乐享 | 久久九九青青国产精品 | 国产精品在线手机视频 | 国产精品人妻一区免费看8C0M | 亚洲精品黄色 | 天堂在线亚洲精品专区 | 欧美激情一区二区三区AA片 | 快播电影官方网站 | 国产美女又黄又爽又色视频网站 | 区一区二视频免费观看 | YELLOW视频在线观看最新 | 无止侵犯高H1V3无止侵犯 | 男女边吃奶边做边爱视频 | 大学生一级毛片免费看 | 日韩亚洲欧洲在线rrrr片 | 日本最新在线不卡免费视频 | 久久久久久久久久毛片精品美女 | 超h高h肉h文教室生理课 |