Method for making aromatic bis(ether anhydride)s

Abstract

Abstract 1. A METHOD FOR MAKING AROMATIC BIS(ETHER ANHYDRIDE)S WHICH COMPRISES, (1) EFFECTING REACTION BETWEEN AN ALKALI DIPHENOXIDE OF THE FORMULA M-O-R-O-M, AND AN AROMATIC ANHYDRIDE SELECTED FROM THE CLASS CONSISTING OF 1,3-DI(O=),X-PHTHALAN AND 1,3-DI(O=),Y-1H,3H-NAPHTHO(1,8-CD)-PYRAN (2) RECOVERING FROM (1), SAID AROMATIC BIS(ETHER ANHYDRIDE), WHERE X AND Y ARE SELECTED FROM THE CLASS CONSISTING OF NITRO AND HALOGEN RADICALS, M IS AN ION OF AN ALKALI METAL, AND R IS A DIVALENT AROMATIC RADICAL HAVING FROM 1-30 CARBON ATOMS AND SELECTED FROM THE CLASS CONSISTING OF -(1,3-PHENYLENE)-, -(1,4-PHENYLENE)-, -(2-(H3C-)-1,4- PHENYLENE)-, -(2-(H3C-)-1,4-PHENYLENE)-(3-(H3C-)-1,4- PHENYLENE)-, -(2,6-DI(H3C-)-1,4-PHENYLENE)-(3,5-DI(H3C)- 1,4-PHENYLENE)-, -(2,6-DI(H3C-),3,5-DI(BR-)-1,4- PHENYLENE)-(2,6-DI(BR-),3,5-DI(H3C-)-1,4-PHENYLENE)- AND -(2,6-DI(BR-)-1,4-PHENYLENE)-C(-CH3)2-(3,5-DI(BR-)- 1,4-PHENYLENE)- AND (B) DIVALENT ORGANIC RADICALS OF THE FORMULA -(1,4-PHENYLENE)-(Q)M-(1,4-PHENYLENE)- WHERE Q IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF DIVALENT RADICALS OF THE FORMULAS -CYH2Y-, >CO, >SO2, >O, >S, WHERE -M IS 0 OR 1, Y IS A WHOLE NUMBER FROM 1 TO 5.

Inventors

• 👤 F Williams

Bibliographic Details