A New Efficient Synthesis of p-Nitrocalix[4]arene

来源 :中国化学快报 | 被引量 : 0次 | 上传用户:Sunmin
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
A new efficient synthesis of p-nitrocalix[4]arene from calix[4]arene by using nitrogen dioxide is described. The compound is an useful intermediates for the introduction of other functional groups to obtain N containing substituted calix[4]arene.The reaction mechanism is briefly discussed.
其他文献
A novel conjugate of dibenzoyldiazomethane and polyamide containing N-methylimida-zoles was synthesized by a chloroform reaction and a DCC/HOBT coupling reactio
From the knotted pictures this article gives a possible quantitative measure of the degree of entanglement.We suggest to use the area ratio to measure the degre
A new type of dual-electrode and multi-channel electrochemical detection technology for capillary electrophoresis is described in this paper. Two detectors(the
Background Peptide nucleic acid (PNA) has many characteristics useful in molecular biology. This paper described an effective way to raise the cell ingestion r
In this paper the authors study (1 -γ + zf″(z)/f′(z))/(zf′(z)/f(z)) as a criteria for starlikeness and convexity. Sharp upper bound of |a2| and of the Feket
The author considers the contact process on a branching plane Td× Z, which is the product of a regular tree Td and the line Z. It is shown that above the secon
Based on the energy conservation, the elastic energy linked to the compliance change,non-elastic energy dissipated by irreversible deformation and the resistanc
Thermodynamic concepts required for the thermodynamic calculation of the potentials of electrodes for high temperature applications are briefly reviewed. A ther
Background Generally speaking, undifferentiated keratinocytes may synthesize a larger amount of IL-c and its production is decreased as cells complete different