Bisphosphite and process for producing aldehyde compound with the bisphosphite

摘要

Bisphosphite(s) represented by the following general formula (I): wherein Ar¹ and Ar² are each independently a substituted or unsubstituted arylene group; R¹, R², R⁷ and R⁸ are each independently a substituted or an unsubstituted alkyl group, a substituted or an unsubstituted aryl group or a substituted or an unsubstituted heterocyclic group, or R¹and R² or R⁷ and R⁸ may together form a ring with their associated oxygen atoms and phosphor atom; and R³, R⁴, R⁵ and R⁶ are each independently a hydrogen atom or an alkyl group, with the proviso that the carbon atom bearing R³ and R⁴ and the carbon atom bearing R⁵ and R⁶ are bound to the respective arylene groups at the ortho position to the Ar¹-Ar² bond. Also provided is a process for producing aldehyde(s) using the bisphosphite and a Group 8 to 10 metal compound. A composition comprising the bisphosphite and a Group 8 to 10 metal compound is further provided.