## Abstract The syntheses of the title compounds (2__R__,6__S__)‐**1** and (2__S__,6__R__)‐**1** from (__R__)‐ and (S)‐β‐hydroxybutyrate **3** are described. The formation of the spiroacetal **1** from (__R__)‐**9** proceeded stereoselectively to give only (2__R__,6__S__)‐**1**. Similarly (__S__)‐*
✦ LIBER ✦
Pheromones, 65. Identification of the volatile components of the mandibular gland secretion of the antManica rubida: Structure elucidation, synthesis, and absolute configuration of Manicone
✍ Scribed by Bestmann, Hans Jürgen ;Attygalle, Athula B. ;Glasbrenner, Jürgen ;Riemer, Roland ;Vostrowsky, Otto ;Constantino, Mauricio Gomes ;Melikian, Gagik ;Morgan, E. David
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 602 KB
- Volume
- 1988
- Category
- Article
- ISSN
- 0947-3440
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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