The resolution of insect pheromonal cis-monoepoxy racemates derived from (Z,Z)-6,9-dienes was examined employing chiral HPLC columns, and the results showed that a normal-phase column (Chiralpak AD) was suitable for both 6,7-and 9,10epoxides with a C 17 -C 23 straight chain, as was a reversed-phase
Assignment of absolute stereochemistry to an insect pheromone by chiral amplification
โ Scribed by Xiongwei Shi; Walter S. Leal; Jerrold Meinwald
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 551 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0968-0896
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โฆ Synopsis
Chiral amplification, a new strategy for determining the absolute configuration of difficulty available natural secondary alcohols or analogous amines, is described. Using this technique, the R configuration can be assigned to both components of the male sex pheromone emitted by the longhorn beetle, Anaglyptus subfasciatus. The application of this approach to fourteen alcohols and four amines illustrates its scope and limitations.
๐ SIMILAR VOLUMES
Five phenylacetylenes bearing an amino group such as 4-amino (1), 3-amino (2), 4-N,N-dimethylamino (3), 4-aminomethyl (4), and 4-N,N-diisopropylaminomethyl (5) group on the phenyl group, 4-pyridylacetylene (6), and 2-pyridylacetylene (7) were synthesized and polymerized with [Rh(nbd)Cl] 2 (nbd: norb