Spatial structure of 5-phenyl-5-oxo-2,4,6-triisopropyl-1,3,5-dioxa phosphorinane |
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| Authors: | B A Arbuzov O A Erastov I A Litvinov D S Yufit Yu T Struchkov |
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| Institution: | (1) A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Branch, Academy of Sciences of the USSR, USSR;(2) A. N. Nesmeyanov Institute of Heteroorganic Compounds, Academy of Sciences of the USSR, Moscow |
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| Abstract: | Conclusions By means of x-ray structure analysis, it has been shown that the stereoisomer of 5-phenyl-5-oxo-2,4,6-triisopropyl-1,3,5-dioxaphosphorinane with mp 215°C has the chair conformation with all equatorial substituents of the ring atoms and axial substituents of the phosphoryl group. The conformations of the isopropyl groups are retarded relative to the ring bonds. The benzene ring at the P atom is perpendicular to the plane of the heterocycle.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No.3, pp. 599–603, March, 1982. |
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