Studies towards asymmetric synthesis of 4(S)-11-dihydroxydocosahexaenoic acid (diHDHA) featuring cross-coupling of chiral stannane under mild conditions
A new facile preparation of a bifunctionalized C6 homologating agent from 1,4-cyclohexadiene
作者:Sabine Michaud、Jacques Viala
DOI:10.1016/s0040-4020(99)00077-0
日期:1999.3
a new preparation of the bifunctionalized unsaturated C6 homologating agent 2b which is an efficient synthetic tool is described. This method is atom economic, very efficient on grams scale and easy to handle from cheap commercially available 1,4-cyclohexadiene. Synthetic applications by using a mild and selective monohydrolysis of acetal catalysed by FeCl3 are described.
Oxidative degradation of eicosapentaenoic acid into polyunsaturated aldehydes
作者:Anne Kristin Holmeide、Lars Skattebøl
DOI:10.1016/s0040-4020(03)01096-2
日期:2003.9
Eicosapentaenoic acid is converted in good overall yield to an α,β-ethylenic epoxide derivative. The oxidative cleavage of the epoxide ring with periodic acid in ether proceeded in part with acid-catalyzedrearrangement of the vinyl epoxide moiety prior to cleavage. Among the products were 2E- and 2Z, 5Z, 8Z, 11Z-tetradecatetraenal, 4-hydroxy-2E,6Z,9Z,12Z-pentadecatetraenal and (all-Z)-2-methoxy-3
A convenient strategy for the synthesis of β,γ-unsaturated aldehydes and acids. A construction of skipped dienes
作者:Goutam Saha、Manas K. Basu、Seongjin Kim、Young-Ju Jung、Yurdanur Adiyaman、Mustafa Adiyaman、William S. Powell、Garret A. FitzGerald、Joshua Rokach
DOI:10.1016/s0040-4039(99)01498-7
日期:1999.10
A novel strategy is described for the synthesis of beta,gamma-unsaturated aldehydes which are the useful synthons for the synthesis of arachidonic acid and other eicosanoid products. These beta,gamma-unsaturated aldehydes have been used in the total synthesis of arachidonic acid. (C) 1999 Elsevier Science Ltd. All rights reserved.
Studies towards asymmetric synthesis of 4(S)-11-dihydroxydocosahexaenoic acid (diHDHA) featuring cross-coupling of chiral stannane under mild conditions
作者:Rui Wang、John R. Falck
DOI:10.1039/c4ob02324b
日期:——
An efficient and asymmetric synthesis approach towards the biologically interesting molecule 4(S)-11-dihydroxydocosahexaenoic acid (diHDHA) was developed. This protocol mainly relied on our mild cross-coupling and asymmetric stannylation.