久久精品电影网_久久久久久电影_久久99精品久久久久久按摩秒播_天堂福利影院_国产男女爽爽爽免费视频_国产美女久久

Macroheterocycles

Macroheterocycles

大雜環

研究方向:化學
影響因子:1.112

  中文簡介

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。

  英文簡介

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.

  近年期刊自引率趨勢圖

  JCR分區

JCR分區等級 JCR所屬學科 分區 影響因子
Q4 CHEMISTRY, MULTIDISCIPLINARY Q4 1.418

  近年期刊影響因子趨勢圖

  CiteScore數值

CiteScore SJR SNIP 學科類別 分區 排名 百分位
1.80 0.253 0.387 大類:Chemistry 小類:Analytical Chemistry Q3 94 / 130

28%

大類:Chemistry 小類:Organic Chemistry Q4 152 / 192

21%

  相關化學SCI期刊推薦

SCI服務

搜論文知識網 冀ICP備15021333號-3

主站蜘蛛池模板: 伊人精品一区二区三区 | 亚洲欧美日韩电影 | 日韩一二区在线 | 国产日韩久久 | 国产精品一区一区 | 欧美在线国产精品 | 亚洲一区二区三区四区av | 综合二区| 中文字幕一区二区三区日韩精品 | 欧美成视频 | 三级黄色片在线 | 91精品久久久久久久久久入口 | 亚洲色片网站 | 精品国产乱码久久久久久中文 | 国产在线一区二区三区 | 91精品国产91综合久久蜜臀 | 久久天天 | 日韩欧美在线观看视频网站 | 亚洲国产欧美精品 | 51ⅴ精品国产91久久久久久 | 午夜影院| 日韩在线免费 | 日韩视频中文字幕 | 激情一区 | 国产精品成人久久久久 | 亚洲欧美国产毛片在线 | 欧美一区二区三区久久精品 | 国产精品久久久久久久久久三级 | 欧美一区二区成人 | www亚洲免费国内精品 | 欧美久久久 | 日本三级视频 | 久久婷婷av | 亚洲成人播放器 | 国产成人免费网站 | 一区二区三区四区在线 | 99re视频在线| 国产乡下妇女做爰 | 久久久久亚洲 | 成人在线视频免费观看 | 久草中文在线 |