Organophosphorus compounds based on tetraphenol (TP)-substituted structures

An organic phosphorus compound of formula 2:

• wherein:
• G1 is an at least disubstituted 1,2-, 1,3-, or 1,4-phenyl radical, and is connected to G2 by a monovalent bond in each case;
• G2 is a C1-alkyl radical comprising a tertiary or quaternary substitution;
• G3 and G4 are the same and are each an at least monosubstituted aromatic radical selected from the group consisting of an aromatic, a heteroaromatic, a fused aromatic system, and a fused heteroaromatic system;
• and
• G5 and G6 are the same and selected from the group consisting of O-alkyl, O-aryl, O-acyl, O-heteroaryl, O-cycloalkyl, O-silyl, acyl, alkyl, aryl, heteroaryl, cycloalkyl, perfluoroalkyl, N-alkyl, N-aryl, N-heteroaryl, N-cycloalkyl, and N-silyl.