Absolute configuration of eldanolide, the wing gland pheromone of the male African sugar cane borer, Eldana saccharina (Wlk.) syntheses of its (+) and (−) enantiomers.
The isolation and structure determination of eldanolide, the wing gland pheromone of the male African Sugar Cane Borer, Eldana saccharina (Wlk.) is described. The absolute configuration was determined as (3S, 4R) by comparison of the CD spectra of the natural pheromone with both synthetic enantiomers.
Nitro alkanes in organic synthesis: An efficient stereoselective synthesis of (+)-trans whisky lactone and (+)-eldanolide from nitro alkane synthons and using bakers' yeast reduction as the key step
作者:Bhabani K Sarmah、Nabin C Barua
DOI:10.1016/s0040-4020(01)80369-0
日期:1993.3
An efficient route using nitroalkane synthon 3a and 3b for the synthesis of optically pure R-(+)-trans whisky lactone, (+)-9 and R-(+)-eldanolide, (+)-10 is described. In a key step, bakers' yeastreduction is employed to get the required chirality.
Synthesis of (3S,4R)-eldanolide and (5S,12R)-leukotriene-B4 through photolysis of optically active hydroxy-7,7-dimethylbicyclo[3.2.0]heptanones
作者:H. Geoff Davies、Stanley M. Roberts、Basil J. Wakefield、John A. Winders
DOI:10.1039/c39850001166
日期:——
Photoisomerisation of 3-hydroxy-7,7-dimethylbicyclo[3.2.0]heptan-6-ones is the key step in a new route to the pheromone eldanolide while leukotriene-B4 is available through a photolytic retro[2 + 2] reaction of 2-hydroxy-7,7-dimethylbicyclo[3.2.0]heptan-6-ones.