The photochemistry of benzotriazole derivatives. Part 2: photolysis of 1-substituted benzotriazole arylhydrazones: new route to phenanthridin-6-yl-2-phenyldiazines.

Abstract

Irradiation of 1-substituted benzotriazole arylhydrazones 3a-c, 4a,b and 5a,b with a 16 W low pressure mercury arc-lamp (254 nm) for 24 h gave phenanthridin-6-yl-2-phenyldiazines 9a-c, phenanthridin-6(5H)-ones 10a-c, 1-anilinobenzimidazoles 11a-c, 2-aryl-1H-benzimidazoles 12a-c, 1-arylamino-1H-benzimidazol-2-carboxylic acid ethyl esters 14a,b, 1-aryl-1H, 9H-benzo [4,5][1,2,3] triazolo[1,2-a]tetrazole-3-carboxylic acid ethyl esters 16a,b, 1-arylamino-2-benzoylbenzimidazoles 18a,b and 2-benzoylbenzoxazole 21.

• Authors: Nader A Al-Jalal, Maher R Ibrahim, Nouria A Al-Awadi, Mohamed H Elnagdi
• Journal: Molecules (Basel, Switzerland) (Molecules) Vol. 16 Issue 12 Pg. 10256-68 (Dec 08 2011) ISSN: 1420-3049 [Electronic] Switzerland
• PMID: 22158592 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Hydrazones
• Phenanthridines
• Triazoles
• benzotriazole

Topics

• Crystallography, X-Ray
• Hydrazones (chemistry)
• Molecular Conformation
• Phenanthridines (chemical synthesis, chemistry)
• Photolysis
• Triazoles (chemical synthesis, chemistry)