Benzaldehyde N,N-Dimethylhydrazone in the Reaction with 4-Oxo-2-pentafluorophenoxy-5,6-benzo- 1,3,2-dioxaphosphorinane. Preparation and Spatial Structure of 4-Dimethylamino-2,5-dioxo-2-pentafluorophenoxy-3-phenyldihydro-6,7-benzo-1,4,2-oxazaphosphepine |
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| Authors: | Mironov V F Gubaidullin A T Ivkova G A Litvinov I A Buzykin B I Burnaeva L M Konovalova I V |
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| Institution: | (1) Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Kazan, Tatarstan, Russia |
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| Abstract: | Benzaldehyde N,N-dimethylhydrazone with 4-oxo-2-pentafluorophenoxy-5,6-benzo-1,3,2-dioxaphosphorinane is capable to yield with high stereoselectivity a product of the phosphorus heterocycle expansion: unstable to hydrolysis 4-dimethylamino-2,5-dioxo-2-pentafluorophenoxy-3-phenyldihydro-6,7-benzo-1,4,2-oxazaphosphepine. The configuration of the prevailing isomer of the latter was determined by X-ray diffraction study. |
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