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Photochemical reactions of intramolecularly hydrogen-bonded azobenzene-carboxylic acids

✍ Scribed by C.P. Joshua; V.N.Rajasekharan Pillai

Publisher
Elsevier Science
Year
1973
Tongue
French
Weight
201 KB
Volume
14
Category
Article
ISSN
0040-4039

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✦ Synopsis

Stilbenes' , diphenylamines2 and schiff bases 3 undergo photochemical cyclodehydrogenation in organic solvents. But azobenzene did not cyclize under these conditions4. The failure of azobenzene to photocyclize in organic solvents was attributed to the fact that the lowest excited state is of the n-r+ type.

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