The title compounds (2R,5S,7R)-1, (2S,5S,7R)-l, (2R,5R,7S)-l, and (2S,5R,7S)-l were synthesized from ethyl (S)-lactate (3) and the (R)-or (S)-enantiomers of ethyl 3-hydroxybutanoate (4a). The formation of the spiro acetal 1 from 2b proceeds stereoselectively. Various spiro acetals with axial S-chira
β¦ LIBER β¦
Pheromone Synthesis, LXIV. Synthesis of the Enantiomers of 2-Methyl-1,7-dioxaspiro[5.6]-dodecane, a Component of the Volatile Secretion from the Mandibular Glands ofAndrena haemorrhoa F.
β Scribed by Mori, Kenji ;Katsurada, Manabu
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 301 KB
- Volume
- 1984
- Category
- Article
- ISSN
- 0947-3440
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β¦ Synopsis
Abstract
The syntheses of the title compounds (2__R__,6__S__)β1 and (2__S__,6__R__)β1 from (R)β and (S)βΞ²βhydroxybutyrate 3 are described. The formation of the spiroacetal 1 from (R)β9 proceeded stereoselectively to give only (2__R__,6__S__)β1. Similarly (S)β9 yielded (2__S__,6__R__)β1.
π SIMILAR VOLUMES
Pheromone Syntheses, LXXVIII. Synthesis
β
Mori, Kenji ;Soga, Hiroshi ;Ikunaka, Masaya
π
Article
π
1985
π
John Wiley and Sons
π
English
β 683 KB
Synthesis of a mixture of (2S,5R)- and (
β
Isidoro Izquierdo Cubero; Maria T. Plaza Lopez-Espinosa; Naama Kari
π
Article
π
1995
π
Elsevier Science
π
English
β 898 KB
## Synthesis of a mixture of (2S,5R)-and (2S,5S)-2-methyl-l,6-dioxaspiro[4.5]decane, the odor bouquet minor components of Paravespula vulgaris(L.), from L-sorbose \*