6533b854fe1ef96bd12af1ee

RESEARCH PRODUCT

β-(3,6,9-Trimethyl-9-xanthenyl)propionic acid

Janusz B. KyziołEwa NowakowskaJacek Zaleski

subject

chemistry.chemical_classificationchemistry.chemical_compoundValence (chemistry)chemistryHydrogen bondStereochemistryLevulinic acidGeneral Materials ScienceGeneral ChemistryCondensed Matter PhysicsBenzeneMedicinal chemistryAlkyl

description

The title compound, C19H20O3, was obtained, among other condensation products, from the reaction of meta-cresol and levulinic acid. The pyrane ring closure does not alter significantly the environment of the ethereal linkage in comparison with diaryl ethers. The deformations of the endocyclic valence angles in the benzene rings, centred on the C atoms substituted with alkyl groups, is greater than expected. The mol­ecular packing is influenced by O—H⋯O hydrogen bonds, leading to centrosymmetric dimers.

https://doi.org/10.1107/s1600536807021332