Synthesis of all the stereoisomers of 6-methyl-2-octadecanone, 6,14-dimethyl-2-octadecanone, and 14-methyl-2-octadecanone, the components of the female-produced sex pheromone of a moth, Lyclene dharma dharma
作者:Kenji Mori
DOI:10.1016/j.tet.2009.01.092
日期:2009.4
All of the stereoisomers of the components of the female-produced sexpheromone of a moth, Lyclene dharma dharma, were synthesized. They are (R)- and (S)-6-methyl-2-octadecanone, (6R,14R)-, (6R,14S)-, (6S,14R)-, and (6S,14S)-6,14-dimethyl-2-octadecanone, and (R)- and (S)-14-methyl-2-octadecanone. Enantiomers of citronellal and methyl (S)-3-hydroxy-2-methylpropanoate were the starting materials, and
Stereochemical elucidation of the 1,4 polyketide amphidinoketide I
作者:Louise M Walsh、Jonathan M Goodman
DOI:10.1039/b309104j
日期:——
The relative and absolute stereochemistry of amphidinoketide I has been determined by the total synthesis of all the diastereoisomers. Molecular modelling suggests that the natural product is not the thermodynamically preferred diastereoisomer.
Studies toward the Total Synthesis of Sorangicins: Asymmetric Synthesis of the Key Fragments
作者:Dieter Schinzer、Claudia Schulz、Olga Krug
DOI:10.1055/s-2004-835661
日期:——
Efficient synthesis of the key fragments of the complex antibiotics class of sorangicins (Scheme 1) is described. Starting from simple compounds fragments I, II, and IV can be synthesized. For fragment III we chose an approach via L-glucal.
Baker's yeast-mediated hydrogenation of 2-substituted allyl alcohols: A biocatalytic route to a new highly enantioselective synthesis of (R)-2-methyl alkanols