Gd(OTf)<sub>3</sub>-catalyzed synthesis of geranyl esters for the intramolecular radical cyclization of their epoxides mediated by titanocene(<scp>iii</scp>)
作者:William H. García Santos、Carlos E. Puerto Galvis、Vladimir V. Kouznetsov
DOI:10.1039/c4ob02312a
日期:——
The catalytic activity of Gd(OTf)3 for the direct esterification of geraniol and the regio- and stereo-controlled radical cyclization of their epoxides mediated by titanocene(iii) is described.
Synthesis of Antimicrobial Natural Products Targeting FtsZ: (+)-Totarol and Related Totarane Diterpenes
作者:Michelle B. Kim、Jared T. Shaw
DOI:10.1021/ol100929z
日期:2010.8.6
An efficient, convergent synthesis of totarol by a diastereoselective epoxide/alkene/arene bicyclization is described. The reported synthesis enables the preparation of related diterpenes totaradiol and totarolone as well as previously unavailable derivatives that exhibit comparable inhibition of the bacterial cell division protein FtsZ.
Efficient and highly selective cyclization induced by Lewis acid to generate 2-hydroxyl-<font>α</font>-cyclogeraniol
作者:Zi Wang、Weiyi Qi、Yixuan Yan、Youhong Hu、Linhua Song
DOI:10.1080/00397911.2016.1239739
日期:2016.12.1
ABSTRACT A cyclization reaction of the hydroxyl-protected geraniol epoxide induced by the different Lewisacids to generate 2-hydroxyl-α-cyclogeraniol has been explored. Compared with the previous methods, this method enhances the production and selectivity of this reaction without the consumption of a large amount of solvent. Also, the coordination of the metal with two oxygen atoms of hydroxyl groups