9-Eth­oxy-1,5,13-trimethyl-8,10-dioxa­tetra­cyclo­[7.7.1.0(2,7).0(11,16)]hepta­deca-2,4,6,11,13,15-hexa­ene

The reaction of ethyl acetoacetate with meta-cresol in an acidic ionic liquid yielded a complex mixture of condensation products. 4,7-Dimethyl­coumarin and the title compound, C(20)H(22)O(3), were isolated. The title compound shows chemical but not crystallographic mirror symmetry. The two aromatic...

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Detalles Bibliográficos
Autores principales: Nowakowska-Bogdan, Ewa Maria, Wicher, Ewa, Ejsmont, Krzysztof, Zaleski, Jacek
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2009
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2970093/
https://www.ncbi.nlm.nih.gov/pubmed/21577627
http://dx.doi.org/10.1107/S1600536809032747
Descripción
Sumario:The reaction of ethyl acetoacetate with meta-cresol in an acidic ionic liquid yielded a complex mixture of condensation products. 4,7-Dimethyl­coumarin and the title compound, C(20)H(22)O(3), were isolated. The title compound shows chemical but not crystallographic mirror symmetry. The two aromatic rings are inclined at an angle of 73.55 (6)°.

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