Solid-Phase Selenium-Catalyzed Selective Allylic Chlorination of Polyprenoids: Facile Syntheses of Biologically Active Terpenoids
作者:Alejandro F. Barrero、José F. Quílez del Moral、M. Mar Herrador、Manuel Cortés、Pilar Arteaga、Julieta V. Catalán、Elena M. Sánchez、Jesús F. Arteaga
DOI:10.1021/jo060760d
日期:2006.7.1
Regioselective halogenation of the terminal isopropylidene unit of different acyclic polyolefinic polyprenoids (farnesyl acetate, geranylgeranylacetate, squalene, etc.) using NCS/catalytic polymer-supported selenenyl bromide is described; good to excellent yields are obtained (68−96%). The first applications of this protocol include the concise synthesis of bioactive terpenoids 1−3.
A CONVERGENT AND STEREOSELECTIVE SYNTHESIS OF CEMBRENENE PRECURSOR-4,10-DIMETHYL-7-ISOPROPENYL-14-OXO-3Z,5E,10E-PENTADECATRIENAL
作者:Weidong Li、Yulin Li、Ying Li
DOI:10.1080/00304949609355910
日期:1996.2
US5243097A
申请人:——
公开号:US5243097A
公开(公告)日:1993-09-07
Control of the Regio- and Diastereoselectivity for the Preparation of Highly Functionalized Terpenic Cyclopentanes through Radical Cyclization
作者:Jesús F. Arteaga、Horacio R. Diéguez、José A. González-Delgado、José F. Quílez del Moral、Alejandro F. Barrero
DOI:10.1002/ejoc.201100400
日期:2011.9
The titanocene-mediated cyclization of suitably functionalized acyclic C10 epoxy-polyprenes leads, with moderate stereoselectivity, to high yields of functionalized terpenic cyclopentanes with three contiguous stereogenic centers. These highly functionalized cyclopentanes are useful intermediates for the synthesis of several natural compounds that include this interesting subunit in their structure