Photochemical behavior of indane-1,2,3-trione in degassed alcoholic solutions: Formation of 3-substituted phthalides

Chemistry Letters

Volumn , Issue 2, 1997, Pages 177-178

  Tatsugi, Jiro ^a   Hara, Tomoaki ^a   Izawa, Yasuji ^a  

^a AICHI INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0031523912     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1997.177     Document Type: Article

References (18)

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11. Indane-1,2,3-trione was prepared from the dehydration of ninhydrin by heating at 120°C for a few hours under reduced pressure.
12. Before irradiation, indane-1,2,3-trione in alcoholic solutions in Pyrex tubes were degassed by an ultrasonic generator under purging argon and cooled with ice-water for 30 minutes.
13. +, 0.2), 164 (1), 149 (100), 133 (33), 104 (26).
14. We thank a referee for his/her suggestion of this pathway.
15. Y. Otsuji, S. wake, and E. Imoto, Tetrahedron, 26, 4139 (1970).
16. The phosphorscence emission spectra of 1 and indane-1,3-dione were observed at 546 and at 554 nm, respectively, on the other hand, that of indan-2-one was observed at 418 nm.
17. All new compounds were fully characterized.
18. R. J. Spangler, L. G. Henscheid, and K. T. Buck, J. Org. Chem., 42, 1693 (1977), and references cited therein.