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7-[(5,5-Dimethyl-2-oxido-1,3,2-dioxaphosphinan-2-yl)-oxy]-4-methyl-2H-chromen-2-one.
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The title compound, C(15)H(17)O(6)P, was obtained from a reaction of 4-methyl-7-hy-droxy-coumarin and 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphinane 2-oxide.There are two mol-ecules in the asymmetric unit in which the benzopyran ring system is almost planar [r.m.s. deviation for each molecule = 0.003 Å].The dioxaphospho-rinane ring adopts a chair conformation in both asymmetric molecules.
Affiliation: College of Chemistry and Chemical Engineering, Xuchang University, Xuchang, Henan Province 461000, People's Republic of China.
ABSTRACT
The title compound, C(15)H(17)O(6)P, was obtained from a reaction of 4-methyl-7-hy-droxy-coumarin and 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphinane 2-oxide. There are two mol-ecules 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 inter-actions [with centroid-centroid distances of 3.743 (3) and 3.727 (3) Å] link the two mol-ecules. The dioxaphospho-rinane ring adopts a chair conformation in both asymmetric molecules. No MeSH data available. |
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Fap1: The asymmetric unit of the title compound, (I), with displacement ellipsoids drawn at the 30% probability level. |
View Article: PubMed Central - HTML - PubMed
Affiliation: College of Chemistry and Chemical Engineering, Xuchang University, Xuchang, Henan Province 461000, People's Republic of China.
No MeSH data available.
