Heterocyclic selenamonophosphites protected on a hydroxyl group and processes for preparation thereof

A process for preparing at least one heterocyclic selenephosphite of the general structure (I)

• where R2, R3, R4, R5, R6, R7, R8 and R9 are each independently selected from:
• —H, —(C1-C12)-alkyl, —O—(C1-C12)-alkyl, —(C6-C20)-aryl, —O—(C6-C20)-aryl, -halogen, —OC═O—(C1-C12)-alkyl, —S-alkyl, —S-aryl, —COO—(C1-C12)-alkyl, —CONH—(C1-C12)-alkyl, —CO—(C1-C12)-alkyl, —CO—(C6-C20)-aryl, —COOH, —SO3H, —CN, or —N[(C1-C12)-alkyl]2, where the alkyl groups are linear, branched or cyclic, where the alkyl and aryl groups are each independently unsubstituted or substituted, where each substituted —(C1-C12)-alkyl group and substituted —(C6-C20)-aryl group have at least one substituent and the at least one substituent is each independently selected from —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C6-C20)-aryl, fluorine, chlorine, cyano, formyl, acyl or alkoxycarbonyl, and
• where the —R1 group is selected from:
• —(C1-C12)-alkyl, —(C1-C12)-alkyl-O—(C1-C12)-alkyl, —(C6-C20)-aryl, —(C1-C12)-alkyl-O—(C6-C20)-aryl, —(C6-C20)-aryl-O—(C1-C12)-alkyl, —(C6-C20)-aryl-O—(C6-C20)-aryl, —C═O—O—(C1-C12)-alkyl, or acetyl, where the alkyl groups are linear, branched or cyclic, where the alkyl and aryl groups mentioned are each independently unsubstituted or substituted, where substituted —(C1-C12)-alkyl groups and substituted —(C6-C20)-aryl groups have at least one substituent and the at least one substituent in each case is independently selected from —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C6-C20)-aryl, fluorine, chlorine, cyano, formyl, acyl or alkoxycarbonyl,
• and the —R1* group is an organofunctional phosphite group.
• comprising at least the process step of
• (i) reacting a selenodiaryl of the general structure (IX)
• where R2, R3, R4, R5, R6, R7, R8 and R9 are each independently selected from:
• —H, —(C1-C12)-alkyl, —O—(C1-C12)-alkyl, —(C6-C20)-aryl, —O—(C6-C20)-aryl, -halogen, —OC═O—(C1-C12)-alkyl, —S-alkyl, —S-aryl, —COO—(C1-C12)-alkyl, —CONH—(C1-C12)-alkyl, —CO—(C1-C12)-alkyl, —CO—(C6-C20)-aryl, —COOH, —SO3H, —CN, or —N[(C1-C12)-alkyl]2, where the alkyl groups are linear, branched or cyclic, where the alkyl and aryl groups are each independently unsubstituted or substituted, where each subtituted —(C1-C12)-alkyl group and substituted —(C6-C20)-aryl group have at least one substituent and the at least one substituent is each independently selected from —(C3-C12)-cycloalkyl, —(C3-C12)—heterocycloalkyl, —(C6-C20)-aryl, fluorine, chlorine, cyano, formyl, acyl or alkoxycarbonyl,
• and —R1 group is selected from:
• —(C1-C12)-alkyl, —(C1-C12)-alkyl-O—(C1-C12)-alkyl, —(C6-C20)-aryl, —(C1-C12)-alkyl-O—(C6-C20)-aryl, —(C6-C20)-aryl-O—(C1-C12)-alkyl, —(C6-C20)-aryl-O—(C6-C20)-aryl, —C═O—O—(C1-C12)-alkyl, or acetyl, where the alkyl groups are linear, branched or cyclic, where the alkyl and aryl groups mentioned are each independently unsubstituted or substituted, where substituted —(C1-C12)-alkyl groups and substituted —(C6-C20)-aryl groups have at least one substituent and the at least one substituent in each case is independently selected from —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C6-C20)-aryl, fluorine, chlorine, cyano, formyl, acyl or alkoxycarbonyl,
• (ii) with at least one halophosphite compound R1*Hal where Hal is selected from fluorine, chlorine, bromine, iodine, and where —R1* is an organofunctional bivalent phosphite group,
• (iii) and obtaining at least one selenaphosphite of the general structure (I).