资助机构:Direccion General de Investigacion、Ministryio de Educacion y Ciencia (DGI-MEC);授权号:CTQ2006-04522/BQU Comunidad de Madrid;拨款编号:S-SAL-0249-2006 教育与科学部长 (MEC)
Formal synthesis of ent-dysiherbaine from sulfinyl dihydropyrans by sigmatropic rearrangement and tethered aminohydroxylation
作者:Roberto Fernández de la Pradilla、Nadia Lwoff、Alma Viso
DOI:10.1016/j.tetlet.2007.09.103
日期:2007.11
A stereospecific [2,3]-sigmatropic rearrangement of a sulfinyl dihydropyran, followed by a tethered aminohydroxylation reaction, are the key steps of a formalsynthesis of ent-dysiherbaine from an enantiopure sulfinyl dienol.
Stereoselective Functionalization of Dihydropyran-3-ols: Application to the Synthesis of Enantiopure Ethyl Deoxymonate B
作者:Roberto Fernández de la Pradilla、Nadia Lwoff、Alma Viso
DOI:10.1002/ejoc.200801133
日期:2009.5
Funded by: Direccion General de Investigacion, Ministerio de Educacion y Ciencia (DGI-MEC); Grant Number: CTQ2006-04522/BQU Comunidad de Madrid; Grant Number: S-SAL-0249-2006 Ministerio de Educacion y Ciencia (MEC)
资助机构:Direccion General de Investigacion、Ministryio de Educacion y Ciencia (DGI-MEC);授权号:CTQ2006-04522/BQU Comunidad de Madrid;拨款编号:S-SAL-0249-2006 教育与科学部长 (MEC)
[2,3]-Sigmatropic Rearrangements of 3-Sulfinyl Dihydropyrans: Application to the Syntheses of the Cores of <i>ent</i>-Dysiherbaine and Deoxymalayamicin A
作者:Roberto Fernández de la Pradilla、Nadia Lwoff、Miguel Ángel del Águila、Mariola Tortosa、Alma Viso
DOI:10.1021/jo8015709
日期:2008.11.21
The [2,3]-sigmatropic rearrangement of a variety of configurationally stable diastereomeric allylic sulfinyl dihydropyrans, produced by base-promoted cyclization of sulfinyl dienols, has been studied. In some cases, the efficient transformation of these substrates into dihydropyranols required an in-depth study of reaction conditions, with the preferred protocol relying on the use of DABCO in warm toluene. This methodology has been applied to the syntheses of the cores of ent-dysiherbaine and deoxymalayamicin A by means of efficient tethered aminohydroxylations.