First Total Synthesis and Assignment of the Stereochemistry of Crispatenine
摘要:
[GRAPHICS]The first racemic and enantioselective synthesis of crispatenine 1 has been achieved, which involved a few steps, enabling the assignment of the absolute and relative configurations.
A simple and efficient enantioselective synthesis of γ-cyclohomocitral, a key and versatile intermediate for the synthesis of some monocyclofarnesane terpenoids, is described. This features a highly sitoselective Sharpless asymmetric didydroxylation of a homomonoterpene diolefin. The first enantioselective synthesis of (−)-ancistrodial and (−)-pallescensone were accomplished. The (S)- configuration
First enantioselective synthesis and determination of the absolute configuration of natural (+)-dehydro-β-monocyclonerolidol
作者:Elie Palombo、Gérard Audran、Honoré Monti
DOI:10.1016/s0040-4039(03)01562-4
日期:2003.8
The enantioselectivesynthesis and determination of the absoluteconfiguration of (+)-dehydro-β-monocyclonerolidol, a natural product isolated from the liverwort P. subobtusa, has been achieved starting from (+)-karahana lactone as an enantiopure building block. Furthermore, the methodology applied provided a new approach towards the known (+)-γ-cyclohomocitral, a key intermediate in the sequence,
First Total Synthesis and Assignment of the Stereochemistry of Crispatenine
作者:Julien Bourdron、Laurent Commeiras、Gérard Audran、Nicolas Vanthuyne、J. C. Hubaud、Jean-Luc Parrain
DOI:10.1021/jo070045j
日期:2007.5.1
[GRAPHICS]The first racemic and enantioselective synthesis of crispatenine 1 has been achieved, which involved a few steps, enabling the assignment of the absolute and relative configurations.