BRANCHED HIGH-MOLECULAR WEIGHT THERMOPLASTIC POLYCARBONATES

摘要

1476108 3,3 - Bis(hydroxyaryl)oxindoles BAYERAG 31 Oct 1976 [3 Jan 1975] 45321/75 Heading C2C [Also in Division C3] 3,3-Bis-(4.hydroxyphenyl)oxindole is prepared by reacting isatin and phenol. Similarly 3,3 - bis - (4 - hydroxynaphthyl). oxindole is prepared from isatin and α-naphthol.