Stereospecific synthesis of a new class of compounds: bis-homoconduritol-A, -D, and -F
作者:Latif Kelebekli、Yunus Kara、Metin Balci
DOI:10.1016/j.carres.2005.05.021
日期:2005.9
derivatives with conduritol-A, -D, and -F structures have been synthesized starting from cyclooctatetraene. The photooxygenation of trans-7,8-dibromo- and cis-7,8-dichlorobicyclo[4.2.0]octa-2,4-dienes afforded the bicyclic endoperoxides. Reduction of the endoperoxides with thiourea followed by acetylation gave the corresponding diacetates. The KMnO(4) oxidation and epoxidation of the diacetates followed
Synthesis of new conduritol analogues derived from bicyclooctatriene: Bis-homo-conduritol-D and bis-homoconduritol-F
作者:Yunus Kara、Metin Balcı、Susan A. Bourne、William H. Watson
DOI:10.1016/s0040-4039(00)76904-8
日期:1994.5
The first synthesis of conduritol analogues 2 and 3 is reported. The key compound 7 reacted with KMnO4 and m-chloroperbenzoic acid in a stereospecific manner to give syn-addition products 9 and 10, respectively. Zinc-dust elimination of 10 followed by epoxide opening resulted in the formation of 3b. The free tetrol 3 was obtained by ammonolysis. The other tetrol isomer 2 was obtained by similar synthetic steps.