Synthesis of methyl (5Z,8Z,10E,12E,14Z)-eicosapentaenoate
摘要:
The first total synthesis of methyl (5Z,8Z,10E,12E,14Z)-eicosapentaenoate has been achieved in seven steps and in 16% overall yield. The synthesis confirmed the assigned structure of this polyunsaturated natural product. (C) 2010 Elsevier Ltd. All rights reserved.
Z-Stereoselective semi-reduction of alkynes: modification of the Boland protocol
作者:Yasser M.A. Mohamed、Trond Vidar Hansen
DOI:10.1016/j.tet.2013.03.038
日期:2013.5
Highly Z-selective semi-reduction of alkynes has been achieved by adding TMSCl to a mixture of Zn(Cu/Ag), water, and methanol. The conjugated Z-alkenes have been prepared in high yields at ambient temperature. The formation of isomeric E-alkenes and over-reduction to alkanes were suppressed in our modified Boland reduction protocol. The methodology was extended to the preparation of Z-substituted stilbenes
An efficient stereoselective synthesis of a sulfur-bridged analogue of bosseopentaenoic acid as a potential antioxidant agent
作者:Yasser Mohamed、Eirik Johansson Solum
DOI:10.24820/ark.5550190.p010.086
日期:——
An efficient approach to the stereoselectivesynthesis of a novel sulfur-bridged analogue of bosseopentaenoic acid (BPA) by employing the Z-selective modified Boland semi-reduction procedure as the key step is described. The free radical scavenging potential of the thiophene analogue of bosseopentaenoic acid is studied. The results showed that the thiophene ring led to increased antioxidant activity
描述了一种通过采用 Z 选择性修饰的 Boland 半还原程序作为关键步骤来立体选择性合成一种新型硫桥连的 bossepentaenoic 酸 (BPA) 类似物的有效方法。研究了bossepentaenoic酸的噻吩类似物的自由基清除能力。结果表明,噻吩环导致抗氧化活性增加。
10.3998/ark.5550190.p010.086
作者:Mohamed, Yasser M.A.、Solum, Eirik Johansson
DOI:10.3998/ark.5550190.p010.086
日期:——
Synthesis of methyl (5Z,8Z,10E,12E,14Z)-eicosapentaenoate
作者:Yasser M.A. Mohamed、Trond Vidar Hansen
DOI:10.1016/j.tetlet.2010.12.078
日期:2011.3
The first total synthesis of methyl (5Z,8Z,10E,12E,14Z)-eicosapentaenoate has been achieved in seven steps and in 16% overall yield. The synthesis confirmed the assigned structure of this polyunsaturated natural product. (C) 2010 Elsevier Ltd. All rights reserved.