Crystal structures of 4-methyl-2-oxo-2H-chromene-7,8-diyl diacetate and 4-methyl-2-oxo-2H-chromene-7,8-diyl bis(pent-4-ynoate)

Crystal structures of 4-methyl-2-oxo-2H-chromene-7,8-diyl diacetate and 4-methyl-2-oxo-2H-chromene-7,8-diyl bis(pent-4-ynoate)

In the structures of the two title coumarin derivatives, C14H12O6, (1), and C20H16O6, (2), one with acetate and the other with pent-4-ynoate substituents, both the coumarin rings are almost planar. In (1), both acetate substituents are significantly rotated out of the coumarin plane to minimize ster...

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Bibliographic Details
Main Authors: Akintunde Akinyemi, Courtney Thomas, Willis Marsh, Ray J. Butcher, Jerry P. Jasinski, Lystranne A. Maynard-Smith
Format: Article
Language:English
Published: International Union of Crystallography 2016-05-01
Series:Acta Crystallographica Section E: Crystallographic Communications
Subjects:
crystal structure
coumarin
pent-4-ynoate substituent
acetate substituent
Online Access:http://scripts.iucr.org/cgi-bin/paper?S2056989016005892

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http://scripts.iucr.org/cgi-bin/paper?S2056989016005892

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