✦ LIBER ✦
ChemInform Abstract: ZrCl4-Mediated Regioselective Electrophilic Amination of Activated Arenes with New Alkyl Arylaminocarbonyldiazenecarboxylates: Intermolecular and Intramolecular Reactions.
✍ Scribed by Roman Lenarsic; Marijan Kocevar; Slovenko Polanc
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 37 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
The title diazenes are found to be new and convenient reagents for the regioselective electrophilic amination of various electron-rich arenes.
The products serve as potent precursors of arylsubstituted hydrazines, ureas, and 1,2,4-triazolinediones. In the absence of activated arenes the diazenes undergo intramolecular cyclization, providing a simple route to benzimidazoles of type (VI). -(LENARSIC,