Patent ID: 11932750
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 11:
12. A method of making a compound of Formula II:, wherein R6 is a covalent bond, an arylene group, or an aralkylene group, and R7 is a hydroxyl group, a thiol group, —S—R8, wherein R8 is an alkyl group, or an amino group, the method comprising:
a) combining components to form a mixture, the components comprising:
i) 4-nitrophthalonitrile;
ii) a compound of Formula III:, wherein R6 and R7 are as defined for Formula II;

iii) an aprotic solvent; and
iv) a base; and

b) reacting the mixture with stirring.