Polymeric phosphite composition and hydrocyanation of unsaturated organic compounds and the isomerization of unsaturated nitriles

A polymeric composition comprising repeat units derived from (1) phosphorus trichloride, (2) an aromatic polyhydric alcohol wherein the location of the OH groups thereof are placed such that, when the polyhydric alcohol is contacted with PCl3, monodentate phosphites are not predominately produced, and (3) an aromatic diol that has a formula selected from the group consisting of

• and combinations of two or more thereof;
• each R4 is independently selected from the group consisting of hydrogen, C1 to C12 alkyl or cycloalkyl group, acetal, ketal, —OR3, —CO2R3, C6 to C20 aryl group, —SiR3, —NO2, —SO3R3, —S(O)R3, —S(O)2R3, —CHO, —C(O)R9, —F, —Cl, —CN, —CF3, —C(O)N(R3)(R3), —A1Z, and combinations of two or more thereof;
• A1 is a C1 to C12 alkylene group:
• Z is selected from the group consisting of —CO2R3, —CHO, —C(O)R3, —C(O)SR3, —SR3, —C(O)NR1R1, —OC(O)R3, —OC(O)OR3, —N═CR1R1, —C(R1)═NR1, —C(R1)═N—O—R1, —P(O)(OR3)(OR3), —S(O)2R3, —S(O)R3, —C(O)OC(O)R3, —NR3CO2R3, —NR3C(O)NR1R1, F, Cl, —NO2, —SO3R3, —CN, and combinations of two or more thereof;
• each R3 is independently selected from the group consisting of C1 to C12 alkyl or cycloalkyl group, C6 to C20 aryl group, and combinations of two or more thereof;
• each R5 is independently selected from the group consisting of H, F, Cl, C1 to C12 alkyl, C1 to C12 cycloalkyl, C6 to C20 aryl, —OR3, —CO2R3, —C(O)R3, —CHO, —CN, —CF3, and combinations of two or more thereof;
• each R6 independently is selected from the group consisting of H, C1 to C12 alkyl, C1 to C12 cycloalkyl, C5 to C20 aryl, and combinations of two or more thereof;
• and
• each R7 independently is selected train the group consisting of H, C1 to C12 alkyl, C1 to C12 cycloalkyl, C6 to C20 aryl, and combinations of two or more thereof.