Phenylselenyl halides: efficient reagents for the selective halogenation and nitration of porphyrins

✍ Scribed by Hasrat Ali; Johan E. van Lier

• Book ID: 104225815
• Publisher: Elsevier Science
• Year: 1991
• Tongue: French
• Weight: 185 KB
• Volume: 32
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)93415-4

✦ Synopsis

Treatment ofOEPNi with PhSeCI or PhSeCI3, yields mono-through tetra-meso-chlorinated products. The reaction ofPhSeCI~with TPPNi likewise gives di-through poly-fl-chlorinated products. When PhSeBr or PhSeBrj is used as the reagent, OEPNi gives brominated products with the loss of an ethyl group, while the TPPNi yieldsfl-brominated analogs. Nitration of OEPNi is accomplished using PhSeCI together with AgNO2.