Photochemical reactions of benzohydroxamic acids
β Scribed by Pradeep Chhaya; Manmohan Nimbalkar; Bhaskar Hosangadi
- Book ID
- 104226303
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 109 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
NMR spectra ( 13 C, 15 N and 29 Si) of the products of trimethylsilylation and tert-butyldimethylsilylation of benzohydroxamic acid and model derivatives of benzohydroximic acid were studied in solutions. The products are shown to have the structure of (Z)(syn)-O,O 0 -bis(trimethylsilyl) and -O,O 0
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