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Ultraviolet spectra of α-carboxystilbenes

II. α-o-carboxyphenylcinnamic acids

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Abstract

The ultraviolet spectra of methyl-α-o-carboxyphenyl cinnamates and α-o-carboxyphenylcinnamic acids is reported. These compounds possess the characteristiccis stilbene spectral curve, thereby supporting Loewenthal and Pappo’s suggestion that these compounds havecis Ph/Ph-COOR configuration. Formation of this isomer in the Stobbe reaction of dimethyl homophthalate and aryl aldehydes has been rationalized as proceedingvia the erythro conformer of the oxyanion.

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References

  1. Bagavant, G. and Patwardhan, B. H. .. Previous paper.

  2. Loewenthal, H. J. E. and Pappo, R. ..J. Chem. Soc., 1952, p. 4799.

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Authors and Affiliations

  1. Department of Chemistry, Nagpur University, Nagpur

    G. Bagavant & B. H. Patwardhan

Authors
  1. G. Bagavant
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  2. B. H. Patwardhan
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(Communicated by Prof. D. K. Banerjee,f.a.sc.)

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Bagavant, G., Patwardhan, B.H. Ultraviolet spectra of α-carboxystilbenes. Proc. Indian Acad. Sci. 77, 19–25 (1973). https://doi.org/10.1007/BF03049444

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  • DOI: https://doi.org/10.1007/BF03049444

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