Chemistry of Heterocyclic Compounds

, Volume 14, Issue 2, pp 122–127 | Cite as

Photochromic and thermochromic spirans

VII. Spiro(4-oxo-3,4-dihydro-2H-1,3-benzoxazin-2,2′-[2H]benzophyrans)
  • B. S. Luk'yanov
  • Yu. I. Ryabukhin
  • G. N. Dorofeenko
  • L. E. Nivorozhkin
  • V. I. Minkin
Article

Abstract

New spiropyrans of the 4-oxo-3,4-dihydro-2H-1,3-benzoxazine series, individual representatives of which have photochromic properties, were obtained by condensation of 2-alkyl-4-oxo-1,3-benzoxazinium perchlorates with aromatic o-hydroxy aldehydes in acetic acid and subsequent treatment of the 2-(o-hydroxystyryl) derivatives with pyridine or triethylamine. The structures of the synthesized compounds were confirmed by the PMR, IR, and UV spectroscopic data.

Keywords

Acetic Acetic Acid Organic Chemistry Aldehyde Pyridine 

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Copyright information

© Plenum Publishing Corporation 1978

Authors and Affiliations

  • B. S. Luk'yanov
    • 1
  • Yu. I. Ryabukhin
    • 1
  • G. N. Dorofeenko
    • 1
  • L. E. Nivorozhkin
    • 1
  • V. I. Minkin
    • 1
  1. 1.Scientific-Research Institute of Physical and Organic ChemistryRostov State UniversityRostov-On-Don

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