| 摘要 |
1321900 P,P<SP>1</SP> - Bis - (1,2,4 - oxadiazolyl)- stilbenes BADISCHE ANILIN- & SODAFABRIK AG 20 Nov 1970 [22 Nov 1969] 55206/70 Heading C2C The invention comprises compounds (I) where R and R<SP>1</SP> are C 1-6 alkyl optionally substituted by halogen, dialkylamino, heterocyclicamino, aryloxy, alkylmercapto, arylmercapto or aryl; or substituted or unsubstituted phenyl or a mono- or poly-ether radical, and their preparation by reacting p,p<SP>1</SP>-stilbenedioic dichloride with an amidoxime (II). The compounds are used as optical brighteners for textiles and may be incorporated in synthetic polymers prior to spinning. |
