Synthesis and Photochemical Properties of Novel Spirobenzoselenazolinobenzopyrans

DOI: 10.1246/cl.1991.1873

Source and publish data:

Chemistry Letters p. 1873 - 1876 (1991)

Update date:2022-08-06

Topics:

Authors:

Hirano, Masafumi

Miyashita, Akira

Shitara, Hiroaki

Nohira, Hiroyuki

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Article abstract of DOI:10.1246/cl.1991.1873

5-Methoxy-3-methyl-6'-nitrospirobenzoselenazolinobenzopyrans have been newly prepared and their reversible structure changes induced by light were characterized by spectroscopic studies.Their stable colored-forms were identified as 5-methoxy-3-methylbenzoselenazolenium-2-trans-(5'-nitrostyryl-2'-oxide) being a zwitterionic structure.

Full text of DOI:10.1246/cl.1991.1873

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