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

樹人論文網一個專業的學術咨詢網站!!!
樹人論文網
學術咨詢服務

Macroheterocycles

來源: 樹人論文網 瀏覽次數:469次
所屬分區:4區
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

Macroheterocycles雜志中文介紹

討論了含硫大雜環化合物的合成方法、結構和光譜特征。以α,_-二鹵代烷與堿α,_-烷二硫醇反應,合成了含2-6個硫原子的12-42元大雜環。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,制備了含硫和氧原子的氧雜硫大環烷烴。硫大環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,然后用LiAlh4或B2H6還原大雜環二胺。以二羧酸二氯化物與α,_-惡烷二胺反應,以及氯磺酰-β-內酰胺與乙二醇反應制備了氧雜氮雜大環烷,雙(溴甲基)取代芳烴與雙(巰基甲基)苯的反應是合成低聚噻環烷的一般途徑。以2,6-雙(溴甲基)吡啶與α,_-烷烴二硫醇反應制備了含硫環吡啶衍生物。對于含有一個、兩個或多個噻吩環的大環化合物的合成,基于-噻吩烷羧酸氯化物的分子內和分子間酰化、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]-苯的反應為基礎,合成了雙和三丙烯基環化合物。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、紫外光譜等分析結果,討論了含硫大雜環化合物的結構及其導電性和磁性。

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: 欧美日韩一区不卡在线观看 | 亚洲精品影院久久久久久 | 四虎永久在线精品国产免费 | 日韩经典欧美一区二区三区 | 成人免费一级毛片在线播放视频 | 久久亚洲人成网站 | 亚洲偷自拍精品视频在线观看 | 日韩精品久久久久影院 | 最新影音先锋av资源台 | 国产精品97久久久久久AV色戒 | 亚洲精品理论电影在线观看 | 97国产在线播放 | 美女的jj | 国产在线视频一区二区不卡 | gv肉片视频免费观看 | 国产欧美精品一区二区色综合 | 久久re热在线视频精6 | 精品亚洲一区二区三区在线播放 | 99婷婷久久精品国产一区二区 | 国产成年网站v片在线观看 国产成年人在线观看 | 亚洲中文久久久久久国产精品 | 无人区在线日本高清免费 | 内射人妻骚骚骚 | 亚洲一区二区三不卡高清 | 精品无码无人网站免费视频 | 黑人猛挺进小莹的体内视频 | 国产极品白嫩超清在线观看 | 中文字幕亚洲欧美在线视频 | 成人人猿泰山 | 两个吃奶一个添下面视频 | 精品亚洲欧美中文字幕在线看 | 精品爽爽久久久久久蜜臀 | 扒开老师大腿猛进AAA片 | 久久艹综合 | 兔费看少妇性L交大片免费 偷偷要色偷偷 | 翁公与小莹在客厅激情 | 被黑人做的白浆直流 | 久久久久久免费观看 | 甜性涩爱在线播放 | 伦理片秋霞免费影院 | 一个人在线观看的视频 |