Synthesis and olfactory properties of (−)-(1R,2S)-Georgywood
摘要:
The enantiomers of Georgywood(R) were synthesized from (E)-2-methyl-6-methylene-nona-2,7-diene and methacrylaldehyde followed by oxidation of the Diels-Alder adduct and classical racemate separation of the acid with optically-active N-methylephedrine. Conversion to the final ketone and olfactory evaluation showed that the (-)-(1R,2S)-enantiomer is more powerful by a factor of >100 than its antipode. The absolute configuration was determined by conformational studies and CD-analysis. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis and olfactory properties of (−)-(1R,2S)-Georgywood
作者:Georg Fráter、Urs Müller、Fridtjof Schröder
DOI:10.1016/j.tetasy.2004.11.003
日期:2004.12
The enantiomers of Georgywood(R) were synthesized from (E)-2-methyl-6-methylene-nona-2,7-diene and methacrylaldehyde followed by oxidation of the Diels-Alder adduct and classical racemate separation of the acid with optically-active N-methylephedrine. Conversion to the final ketone and olfactory evaluation showed that the (-)-(1R,2S)-enantiomer is more powerful by a factor of >100 than its antipode. The absolute configuration was determined by conformational studies and CD-analysis. (C) 2004 Elsevier Ltd. All rights reserved.