Regioselective Ene-Type Allylic Chlorination of Electron-Rich Alkenes by Activated DMSO
作者:Vera P. Demertzidou、Stavroula Pappa、Vasiliki Sarli、Alexandros L. Zografos
DOI:10.1021/acs.joc.7b01103
日期:2017.8.18
A simple protocol involving the activation of DMSO by chlorotrimethysilane is described for the chemoselective chlorination of polyprenoids. The proposed protocol provides a versatile and scalable alternative to existing routes for accessing useful synthetic synthons for the synthesis of complex terpenoids.
A stereoselective approach for the southeast segment (C1–C16) of (+)-sorangicin A
作者:Y. Sridhar、P. Srihari
DOI:10.1039/c3ob40985f
日期:——
The stereoselective protective group-free synthesis of the C1âC16 fragment of (+)-sorangicin A consisting of a dihydropyran subunit with a chiral alkyl substituent is achieved. The synthesis of the 4-stereogenic centered subunit involved key reactions such as Noyori asymmetric transfer hydrogenation, Achmatowicz oxidative rearrangement, and highly diastereoselective allylation of the Achmatowicz adduct.