Synthesis and structure of 1-(1,3,2-dioxaphospholan-2-yl)- and 1-(4-methyl-1,3,2-dioxaphosphinan-2-yl)azepan-2-one copper diacetate complexes
✍ Scribed by A. I. Rakhimov; E. A. Pugacheva
- Book ID
- 111459380
- Publisher
- Springer
- Year
- 2007
- Tongue
- English
- Weight
- 104 KB
- Volume
- 77
- Category
- Article
- ISSN
- 1070-3632
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📜 SIMILAR VOLUMES
The title compound, C 14 H 12 OS, crystallizes with the two independent molecules in the asymmetric unit. All bond lengths and angles in both molecules show normal values. No intermolecular hydrogen bonds or short contacts are found in the crystal structure.
The title molecule, C 20 H 16 O, has an s-cis conformation for the ketone system. The dihedral angle between the two aromatic ring systems is 50.3 (1) . Centrosymmetrically related molecules are linked via weak C-HÁ Á Á interactions into a chain along [110].
Two isomeric pairs of compounds, cis-and trans-2morpholino-2-thiono-4-methyl-1,3,2-dioxaphosphinane (1A ם 1B) and 2-morpholino-2-oxo-4-methyl-1,3,2-dioxaphosphinane (2A ם 2B) were obtained and separated into the pure compounds by silica gel chromatography. Attempts at crystallization afforded 1A