Sulfur-containing heterocyclic compounds and thermoplastic resins

A compound of the formula (I):

• where
• X1 and X2 are independently selected from —(C1-C5-alkandiyl)-OH and —C(O)ORx,
• where Rx is selected from the group consisting of hydrogen and C1-C4-alkyl;
• A1 and A2 are independently selected from the group consisting of a single bond and mono- or polycyclic arylene having from 6 to 26 carbon atoms as ring members, where mono- or polycyclic arylene are unsubstituted or carry 1,2, 3 or 4 radicals RAr;
• Z1 and Z2 are selected from phenylene and naphthylene;
• Y is selected from the group consisting of a single bond, O, S, S(O) and S(O)2;
• R1 and R2 are independently selected from the group consisting of halogen, C2-C3-alkynyl, CN, R, OR, CHsR′3-s, NR2, C(O)R and CH═CHR″, it being possible that R1 and R2 are identical or different if p+q>1, where s on each occurrence is 0, 1 or 2;
• n is 0, 1 or 2;
• p and q are independently 0, 1 or 2;
• R is selected from the group consisting of C1-C4-alkyl, phenyl, naphthyl, phenanthrenyl and triphenylenyl, where phenyl, naphthyl, phenanthrenyl and triphenylenyl are unsubstituted or substituted by 1,2, 3 or 4 identical or different radicals R″;
• R′ is selected from the group consisting of phenyl, naphthyl, phenanthrenyl and triphenylenyl, where phenyl, naphthyl, phenanthrenyl and triphenylenyl are unsubstituted or substituted by 1,2, 3 or 4 identical or different radicals R″;
• R″ is selected from hydrogen, methyl, phenyl and naphthyl, where phenyl and naphthyl are unsubstituted or substituted by 1,2, 3 or 4 identical or different radicals R″;
• R′″ is selected from the group consisting of phenyl, halogen, OCH3, CH3, N(CH3)2 and C(O) CH3;
• RAr is selected from the group consisting of fluorine, bromine, chlorine, CN, R3, OR3, benzyl, NR32, C(O)R3 and C(O)NH2, it being possible that RAr is identical or different, if more than 1 is present on each ring;
• R3 is selected from C1-C4-alkyl, phenyl and naphthyl;
• as a monomer for producing a thermoplastic resin that is selected from the group consisting of polycarbonates, polyesters and polyestercarbonates, in particular polycarbonates and polyesters.