Effect of Substituent Orientation on Selectivity between Polymerization and Cyclization: Polycondensation of (Alkylamino)benzoic Acid Dimer Phenyl Esters

✍ Scribed by Akihiro Yokoyama; Shunsuke Saito; Yuuki Shimizu; Tsutomu Yokozawa

• Book ID: 102490572
• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 146 KB
• Volume: 26
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200500626

✦ Synopsis

Abstract

Summary: The polymerization characteristics of (octylamino)benzoic acid dimer phenyl esters with para‐meta (2), meta‐para (3), and meta‐meta (4) orientation of the amino and carbonyl groups were investigated. While treatment of 2 or 3 with a base gave the cyclic dimer 6 as the main product, condensation of 4 with an initiator in the presence of a base afforded polymers with narrow molecular weight distributions.

The condensation of 4 with an initiator in the presence of a base afforded polymers with narrow molecular weight distribution.

imageThe condensation of 4 with an initiator in the presence of a base afforded polymers with narrow molecular weight distribution.