Mild Liquid-Phase Friedel-Crafts Acetylation of Thiophene to 2-Acetylthiophene over Solid-Acid Catal

来源 :Taishan Academic Forum on Graphene Nanomaterials and Biomedi | 被引量 : 0次 | 上传用户:chongyou2026
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Introduction 2-acetylated thiophene,furan,pyrrole,pyridine are very important intermediates for the fine chemicals such as drugs and pharmaceuticals,flavouring agents for food stuffs [1,2].These compounds are generally produced by the conventional acetylation process,the famous Friedel-Crafts acetylation reaction,which is an electrophilic substitution reaction and takes place in the presence of Lewis acid-metal chlorides and some other solid catalysts,such as anhydrous AlCl3 [3-5].
其他文献
Surface-enhanced Raman scattering (SERS) has become one of the most powerful analytical techniques for detection of chemical and biological substances at low co
会议
The similar property of conformal parameterization makes it able to locally preserve the shapes between surface and its parameter domain,as opposed to common pa
会议
  Vincent定理指出:给定d次实系数多项式f(x)和开区间(a1,b1).多项式f(x)在区间(a1,b1)上没有实根,当且仅当存在正常数δ,对任意区间(a,b)(∈)(a1,b1)满足|a-b|<δ时,使得多
As one of most important research issues in formal analysis of dynamical systems,safety verification aims to decide if there exists a trajectory starting from t
会议
  The problem of compressive-sensing(CS)L2-L1-TV reconstruction of magnetic resonance(MR)scans from undersampled k-space data has been addressed in numerous s
This paper proposes a look-ahead interpolation scheme for short line segments.The proposed interpolation method consists of two modules:NURBS fitting and S-curv
会议
Dyes are widely used in the synthesis,printing,textile,pulp mill,food and cosmetic industries.Because they are not easily biodegradable and have a toxic,carcino
会议
Surface enhanced Raman spectroscopy (SERS) is an attractive analytical technique for trace level detection.Noble metal nanomaterial of gold has been widely used
会议
Magnetite (Fe3O4) is one of the most promising candidate anode materials for LIBs because of its higher theoretical reversible capacity (926 mAh g-1) in compari
会议
Graphene oxide (GO),with a mass of oxygen groups,shows excellent processibility and stability in aqueous solution [1],specifically,it shows up to be nagetively
会议