7-[(5,5-Dimethyl-2-oxido-1,3,2-dioxaphosphinan-2-yl)oxy]-4-methyl-2H-chromen-2-one
| Autor: | Yan-Ru Zhao, Xu-Feng Hou, Zhi-Hong Xu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E, Vol 68, Iss 6, Pp o1924-o1924 (2012) |
| Druh dokumentu: | article |
| ISSN: | 16005368 1600-5368 |
| DOI: | 10.1107/S1600536812023513 |
| Popis: | The title compound, C15H17O6P, was obtained from a reaction of 4-methyl-7-hydroxycoumarin and 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphinane 2-oxide. There are two molecules in the asymmetric unit in which the benzopyran ring system is almost planar [r.m.s. deviation for each molecule = 0.003 Å]. In the crystal, C—H...O hydrogen bonds and π–π stacking interactions [with centroid–centroid distances of 3.743 (3) and 3.727 (3) Å] link the two molecules. The dioxaphosphorinane ring adopts a chair conformation in both asymmetric molecules. |
| Databáze: | Directory of Open Access Journals |
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