7,7′-Dihydroxy-4,4′-dimethyl-3,4-dihydro-2H,2′H-4,6′-bichromene-2,2′-dione
2011

Synthesis and Structure of a Novel Coumarin Dimer

publication Evidence: moderate

Author Information

Author(s): Pereira Silva P. S., Parveen Mehtab, Ali Akhtar, Malla Ali Mohammed, Ramos Silva M.

Primary Institution: University of Coimbra

Hypothesis

The study investigates the synthesis and crystal structure of a novel coumarin dimer.

Conclusion

The synthesized coumarin dimer crystallizes as a racemate and forms a three-dimensional network through hydrogen bonding.

Supporting Evidence

  • The title compound contains one chiral center and crystallizes as a racemate.
  • The mean planes of the two coumarin units make a dihedral angle of 88.07°.
  • The structure is stabilized by O—H···O hydrogen bonds forming a three-dimensional network.

Takeaway

Scientists made a new type of coumarin, which is a special kind of chemical, and found out how it looks when it's all put together.

Methodology

The coumarin dimer was synthesized using resorcinol and ethyl acetoacetate with a catalytic amount of polyphosphoric acid.

Digital Object Identifier (DOI)

10.1107/S160053681005244X

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