Cycloaddition of a (−)-menthone-derived nitrone to racemic but-3-en-2-ol led to two spirobicyclic heterocycles, with opposite configurations at the C atom attached to the OH group. This paper describes the __R__ epimer of the 1-hydroxyethyl substituent in imidazoisoxazole C~17~H~30~N~2~O~3~, (I). Th
(–)-(3a′S,4′S,9b′S,1R,2S,5R)-4′-Ethyl-3a′,4′,5′,7′,8′,9b′-hexahydro-2-isopropyl-5-methyl-2′-phenylspiro[cyclohexane-1,7′-dioxino[3,2-e]isoindole]-1′,3′,9′-trione
✍ Scribed by Schollmeyer, Dieter ;Hoffmann, Ralf ;Mattay, Jochen
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 290 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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📜 SIMILAR VOLUMES
Cycloaddition of a (−)-menthone-derived nitrone to racemic but-3-en-2-ol led to two spirobicyclic heterocycles, with opposite configurations at the C atom attached to the OH group. This paper describes the __S__ epimer of the 1-hydroxyethyl substituent in imidazoisoxazole C~17~H~30~N~2~O~3~, (I). Th
The molecule of the title compound, C~20~H~34~O~4~, is centrosymmetric. In the crystal structure, a network of O—H...O hydrogen bonds result in each molecule being linked to four neighbouring molecules and a two-dimensional net is formed.
The title spirocarbopeptoid, C 11 H 13 N 2 O 5 , was prepared from l-fucose in a sequence that gave this and another anomer. The crystal structure determination removes ambiguities in the synthetic sequence.