Molecular and crystal structure of ethylene acetal of endo-endo-3-trityloxymethylbicyclo[3.3.1]nonane-2-on-7-olстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Molecular structure of ethylene acetal of 3-trityloxymethylbicyclo[3.3.1]nonane-2-on-7-ol (3) was determined by X-ray investigation. It was revealed that 3 has endo-endo-configuration and adopt chair-boat-conformation. The distortion of rings was evaluated by calculation of the Zefirov-Palyulin and Cremer-Pople puckering parameters. Failure of esterification of 3 was rationalized in terms of steric hindrance and intramolecular hydrogen bonding.