Enantioselective ProPhenol-Catalyzed Addition of 1,3-Diynes to Aldehydes to Generate Synthetically Versatile Building Blocks and Diyne Natural Products
作者:Barry M. Trost、Vincent S. Chan、Daisuke Yamamoto
DOI:10.1021/ja910656b
日期:2010.4.14
and saturated aldehydes, of which the latter were previously limited in alkynyl zinc additions. The chiral diynol products are also versatile building blocks that can be readily elaborated; this was illustrated through highly selective trans-hydrosilylations, which enabled the synthesis of a beta-hydroxyketone and enyne. Additionally, the development of this method allowed for the rapid total syntheses
Asymmetric synthesis of cytotoxic sponge metabolites R -strongylodiols A and B
作者:James E.D. Kirkham、Timothy D.L. Courtney、Victor Lee、Jack E. Baldwin
DOI:10.1016/j.tetlet.2004.05.122
日期:2004.7
The asymmetric synthesis of the marine sponge natural products, R-strongylodiols A 1 and B 2 using a minimum protection strategy is described. The chirality of the natural products was introduced via the Noyori asymmetric reduction of ynones.
Enantioselective total synthesis of (R)-strongylodiols A and B
作者:Stefan Reber、Thomas F Knöpfel、Erick M Carreira
DOI:10.1016/s0040-4020(03)00905-0
日期:2003.8
We describe an expeditious enantioselective total synthesis of the acetylenic marine natural products (R)-strongylodiols A and B. Central to the strategy is the use of Zn(OTf)2, amine base, and N-methyl ephedrine to mediate the direct addition of a 1,3-diyne to two long-chain aliphatic aldehydes in useful selectivities and yields.
Asymmetric synthesis of cytotoxic sponge metabolites R-strongylodiols A and B and an analogue
作者:James E.D. Kirkham、Timothy D.L. Courtney、Victor Lee、Jack E. Baldwin
DOI:10.1016/j.tet.2005.05.034
日期:2005.7
The asymmetric synthesis of the marine sponge natural products R-strongylodiols A R-1 and B R-2, using a minimum protection strategy, is described. Two approaches were examined and the Noyori asymmetric reduction of ynones was found to be successful for installing the chirality of the natural products. Analogue R-32 was also prepared. In addition, asymmetric alkynylation of aldehydes is briefly reviewed
描述了使用最小保护策略不对称合成海洋海绵天然产物R-强丙二醇A R - 1和B R - 2的方法。研究了两种方法,发现Noyori炔酮的不对称还原成功地确保了天然产物的手性。还制备了类似物R - 32。另外,简要回顾了醛的不对称炔基化。