Asymmetric synthesis of (E)- and (Z)-3,7-dimethyl-2-octene-1,8-diol and callosobruchusic acid
摘要:
Both enantiomers and regioisomers of (E)- and (Z)-3,7-dimethyl-2-octene-1,8-diol and callosobruchusic acid, which have important biological activity were synthesized by enzymatic transesterification of primary alcohols (E)- and (Z)-10. (C) 2004 Elsevier Ltd. All rights reserved.
Both enantiomers of callosobruchusic acid were synthesized, confirming its proposed plane structure as (E)-3, 7-dimethyl-2-octene-1, 8-dioic acid. Both of them were biologically active as the copulation release pheromone of Callosobruchus chinensis L.
Enantiomeric 3,7-Dimethylocta-1,7-dienes as Useful Chiral Building Blocks. A New Access to Both Optical Antipodes of Natural (E)-3,7-Dimethyloct-2-ene-1,8-diol and (E)-3,7-Dimethyloct-2-ene-1,8-dicarboxylic Acid
作者:Wolfgang Giersch、Karl H. Schulte-Elte
DOI:10.1002/hlca.19900730322
日期:1990.5.2
Ozonolysis of the easily available monoterpenoids (−)-1 and (+)-1 leads in high yield to the ketoaldehydes (−)-4 and (+)-4, which serve as convenient intermediates for efficient new routes to both optical antipodes of the naturally occurring octenediol (E)-2 (Monarch butterfly secretion product) and octene-dicarboxylic acid (E)-3 (Callosobruchus chinensis sex pheromone). All steps proceed with almost