Method of making esters of 1,4-diphosphonyl butene

Abstract

Abstract ESTERS OF 1,4-DIPHOSPHONYL BUTENE AND THEIR HALOGENATED DERIVATIVES HAVING THE GENERAL FORMULA: R1-O-P(=O)(-O-R2)-CH2-CH=CH-CH2-P(=O)(-O-R3)-O-R4 I R1-O-P(=O)(-O-R2)-CH2-CH(-X)-CH(-X)-CH2-P(=O)(-O-R3)-O-R4 WHEREIN R1, R2, R3 AND R4 ARE INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARLY ARALKYL, ALKENYL, CYCLOALKYL, ALKALINE METAL, AND WHEREIN X IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF BROMINE, CHLORINE, OR IODINE, ARE USEFUL FLAME-RETARDANTS FOR POLYMERIC SYSTEMS. FLAME-RETARDANT PROPERTIES ARE ALSO IMPARTED BY POLYMERS OF THE ABOVE COMPOUNDS. REPRESENTATIVE POLYMERS OF COMPOUNDS 1 AND 11 WOULD INCLUDE: (-P(=O)(-O-R5)-CH2-CH=CH-CH2-P(=O)(-O-R5)-O-(Y)M-)N III (-P(=O)(-O-R5)-CH2-CH(-X)-CH(-X)-CH2-P(=O)(-O-R5)-O-(Y)M)N (R5-O-)2-P(=O)-CH2-CH=CH-CH2-P(=O)(-O-R5)-O-(Y)M-P(=O) (-O-R5)-CH2-CH=CH-CH2-P(=O)(-O-R5)2 V (R5-O)2-P(=O)-CH2-CH(-X)-CH(-X)-CH2-P(=O)(-O-R5)-O-(Y)M- P(=O)(-O-R5)-CH2-CH(-X)-CH(-X)-CH2-P(=O)(-O-R5)2 VI WHEREIN R5 IS DEFINED IN THE SAME MANNER AS R1, R2, R3, AND R4 ABOVE AND WHEREIN Y IS -((C(-D)(-E))L-O)WHERE C CARBON AND D AND E ARE INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, BROMINE, CHLORINE, ALKYL OR ARYL AND WHEREIN N IS AN INTEGER LESS THAN 5,000, L IS AN INTEGER FROM 2 TO 15 INCLUSIVE, AND M IS AN INTEGER FROM 1 TO 50 INCLUSIVE.

Inventors

• 👤 A Kerst
• 👤 A Peterson

Bibliographic Details