Synthesis of New Xanthones, I | Zendy

Pinto Madalena M. | Zendy; Polónia Joaquim | Zendy

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Synthesis of New Xanthones, I

Author(s) -

Pinto Madalena M.,

Polónia Joaquim

Publication year - 1974

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19740570838

Subject(s) - chemistry , xanthone , condensation , mass spectrum , nmr spectra database , stereochemistry , spectral line , organic chemistry , ion , physics , astronomy , thermodynamics

Condensation of salicylic acid and C‐methylphloroglucinol gave the already known 1,3‐dihydroxy‐2‐methylxanthone ( 1 ) along with two new compounds: 1,3‐dihydroxy‐4‐methylxanthone ( 2 ) and a second one tentatively presented as being 1,3‐dihydroxy‐2‐methyl‐4‐(2‐hydroxybenzoyl)xanthone ( 3 ). The UV., IR., NMR, and mass spectra for the two first compounds are reported and their structures discussed on the basis of δ‐values for H(2), H(4), CH 3 (4) and CH 3 (2). The UV. and IR. spectra for the third compound are reported too.

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