Dimethyldioxirane oxidation of isomeric triterpenes of the hopane series
摘要:
Dimethyldioxirane appeared as an efficient oxidant to convert easily and with good yields hopane 1 into hopan-21beta-ol 5 and hopan-17beta-ol 6, both useful precursors for the synthesis of geohopanoids, the other isomers moretane 2,17alpha-hopane 3 and 17alpha-moretane 4 being much more resistant to oxidation.
Concise syntheses of bacteriohopanetetrol and its glucosamine derivative
作者:Weidong Pan、Yongmin Zhang、Guangyi Liang、Stéphane P. Vincent、Pierre Sinaÿ
DOI:10.1039/b504558d
日期:——
This study describes the syntheses of bacteriohopanetetrol and itsglucosaminederivative through a key direct coupling of a ribose derivative to the hopane skeleton.
这项研究描述了通过核糖衍生物与hop烷骨架的关键直接偶联,合成了细菌紫金刚醇及其葡糖胺衍生物。
Complex Biohopanoids Synthesis: Efficient Anchoring of Ribosyl Subunits onto a C30 Hopane
作者:Weidong Pan、Chao Sun、Yongmin Zhang、Guangyi Liang、Pierre Sinaÿ、Stéphane P. Vincent
DOI:10.1002/chem.200600659
日期:2007.2.2
through a C--C bond. The biological function of biohopanoids also has to be addressed when one considers the broad diversity in both structures and functionalities found in the side chain. Moreover, the stereochemistries of some biohopanoids are still unconfirmed, due to the lack of synthetic methods to prepare them. In this study we describe an efficient methodology for the formation of the C--C bond
Dimethyldioxirane oxidation of isomeric triterpenes of the hopane series
作者:Philippe Bisseret、Michel Rohmer
DOI:10.1016/s0040-4039(00)77508-3
日期:1993.2
Dimethyldioxirane appeared as an efficient oxidant to convert easily and with good yields hopane 1 into hopan-21beta-ol 5 and hopan-17beta-ol 6, both useful precursors for the synthesis of geohopanoids, the other isomers moretane 2,17alpha-hopane 3 and 17alpha-moretane 4 being much more resistant to oxidation.