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1-Benzyl-3,3,5′,6′-tetramethylspiro[indoline-2,2′-[2H]pyrano[3,2-b]-pyridinium] iodide, its hydrate, and a neutral precursor of the salts: synthesis, crystal structure, photochromic transformations in solutions and in crystals

✍ Scribed by E. A. Yurieva; S. M. Aldoshin; L. A. Nikonova; G. V. Shilov; V. A. Nadtochenko


Book ID
111869711
Publisher
Springer
Year
2011
Tongue
English
Weight
396 KB
Volume
60
Category
Article
ISSN
1573-9171

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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