ChemInform Abstract: Synthesis and Molecular Structure of a trans‐Stereoisomer of 2‐Phenyl‐ 2‐phosphabicyclo(4.4.0)decane‐2,5‐dione (m.p. 145 ‐ 146°C).

Abstract

1991 organo-phosphorus compounds, nonmetal heterocycles organo-phosphorus compounds, nonmetal heterocycles S 0087 -228Synthesis and Molecular Structure of a trans-Stereoisomer of 2-Phenyl-2-phosphabicyclo(4.4.0)decane-2,5-dione (m.p. 145 -146 • C).-Isomerization of the cis-phosphabicyclodecanone (I), previously described, in an alkaline medium forms a mixture of 36% (I) and 64% of the transstereoisomer (II) which is separated chromatographically. (X-Ray analysis of (II): monoclinic, space group P21/n, Z = 4). -(BOSYAKOV, YU. G.; SHIGANAKOVA, O. V.; ESPENBETOV, A. A.; STRUCHKOV, YU. T.; Zh.