Enantioselective Total Synthesis of Four Styrylpyrone Derivatives

来源 :中国化学快报 | 被引量 : 0次 | 上传用户:hyc20008
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
The first enantioselective total synthesis of 5-acetoxygoniothalamin 1 and 5-acetoxyisogoniothalamin oxide 2 was achieved through the Sharpless kinetic resolution of racemic secondary 2- furylmethanol 5 and the Mitsunobu reaction. At the same time we developed a short synthetic route for 6R-(+)-goniothalamin 3 and (6R, 7R, 8R)-(+)-goniothalamin oxide 4. And according to this route the configuration of 5-acetoxygoniothalamin 1 was confirmed as (5S, 6S).
其他文献
Searching for special solitary wave solutions with compact support is of important significance in soliton theory. In this paper, to understand the role of nonl
The film formation process of micro-PS particles (diameter 742 nm) and nano-PS particles (diameter 29 nm) wasstudied by atomic force microscopy and differential
We present our Monte Carlo results of the random-bond Potts ferromagnet with the Olson-Young self-dual distribution of quenched disorders in two dimensions. By
从理论上对Cu Fe合金内硼化进行了分析 .利用B Cu、B Fe二元合金状态图分析了Cu Fe合金满足内硼化条件 ;通过Cu Fe合金形成内硼化物总自由焓的计算得出 :Cu Fe合金内硼化满足
Using the extended homogeneous balance method, which is very concise and primary, Lax pairs and Backlund transformation for most nonlinear evolution equations,
The complex Cu(phon)(NO3)2(CH3CN) (phon = 1,10-phenanthroline-5,6-dione) has been synthesized and characterized by elemental analysis, infrared and UV-Vis spect
A new kind of Cu (Ⅱ) complex [Cu(tpmb)2Cl2]@CH3OH@H2O (tpmb = 1,3,5-tri(2- pyrimidinyl)sulfanylmethyl-2,4,6-trimethylbenzene) was synthesized, and its structur
Silicone rubber (SIR) shows superior performance when used outdoors, but its surface can be transformed frominherently hydrophobic to hydrophilic by the adsorpt
According to two estimated relations between the initial period andthe dynamo-generated magnetic dipole field of pulsars, we calculate the statisticaldistributi
The properties of the triplet excited state of [60]fullerene-containing cyclic sulphoxide have been investigated by time-resolved absorption spectroscopy. Trans
期刊