Sulfur-carbon-phosphorus anomeric interactions. 5. Conformational preference of the diphenylthiophosphinoyl group [(C6H5)2P(S)] in cyclohexane and in the 1,3-dithian-2-yl ring
โ Scribed by Juaristi, Eusebio; Lopez-Nunez, Norma A.; Valenzuela, Bertha A.; Valle, Lucia; Toscano, Ruben A.; Soriano-Garcia, Manuel
- Book ID
- 127061632
- Publisher
- American Chemical Society
- Year
- 1987
- Tongue
- English
- Weight
- 721 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0022-3263
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๐ SIMILAR VOLUMES
X-ray crystallographic analyses are reported for the two title compounds (8 and 9), of which the former crystallized in two modifications (8n and 8b). In all three structures, the pyranose rings have the %, (D) conformation and the substituents at C-l are axial and those at C-24-4 are equatorial. Th
Complete analysis of the (1)H and (13)C NMR spectra obtained with and without a chemical shift reagent (Eu(fod)(3)), of bis-lactim ether 1 (Schรถllkopf auxiliary) and monosubstituted 3- or 2-{(2R,5S or 2S,5S)-5-isopropyl-3,6-dimethoxy-2,5-dihydropyrazin-2-yl]methyl}-1H-indoles is presented using grad