Heterocyclic selenaphosphites and process for preparation thereof

A process for preparing at least one heterocyclic selenaphosphite 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 each independently linear, brandied or cyclic, Where the alkyl and aryl groups are each independently unsubstituted cr substituted, where each substituted —(C1-C12)-alkyl group and substituted —(C6-C20)-aryl group has 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
• where —R1 is independently selected from
• —O—(C6-C20)-aryl, —O—(C6-C20)-aryl-(C1-C12)-alkyl, —O—(C6-C20-aryl-O—(C1-C12)-alkyl,
• —O—(C6-C20)-aryl-(C6-C20)-aryl, —O—(C6-C20)-aryl-O—(C6-C20)-aryl, —O—(C1-C12)-alkyl,
• —O—(C1-C12)-alkyl-O—(C1-C12)- alkyl, —O—(C1-C12)-alkyl-(C6-C20)-aryl, or
• —O—(C3-C12)-cycloalkyl, where alkyl in each case is independently linear, branched or cyclic, where the alkyl and aryl groups mentioned are each independently unsubstituted or substituted, each substituted —(C6-C20)-aryl group has at least one or more than one substituent;
• and
• where the substituents on each aryl group are independently selected from:
• —O—(C1-C12)-alkyl, —(C1-C12)-alkyl-O—(C1-C12)-alkyl, —(C1-C12)-alkyl, —O—(C6-C20)-aryl, —O—(C1-C12)-alkyl-O—(C1-C12)-alkyl, —O—(C6-C20)-aryl-O—(C1-C12)-alkyl, —(C3-C12,)-cycloalkyl, —(C3-C12)heterocycloalkyl, —(C6-C20)-aryl, cyano, -halogen, —O—COO—(C1-C12)-alkyl, or —N[(C1-C12)-alkyl]2,
• comprising at least the process step of
• (i) reacting a selenodiaryl of the general structure (XI)
• 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 each independently 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 has 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 alkoxyearbonyl,
• (ii) with a dihalophosphite compound R1P(Hal)2, where Hal is selected from fluorine, chlorine, bromine, or iodine, where R1 corresponds to the definition immediately above,
• (iii) and obtaining at least one selenaphosphite of the general structure (I).