申请人:Tsuji Tomoaki
公开号:US20070197834A1
公开(公告)日:2007-08-23
Bisphosphite(s) represented by the following general formula (I):
wherein Ar
1
and Ar
2
are each independently a substituted or unsubstituted arylene group; R
1
, R
2
, R
7
and R
8
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 R
1
and R
2
or R
7
and R
8
may together form a ring with their associated oxygen atoms and phosphor atom; and R
3
, R
4
, R
5
and R
6
are each independently a hydrogen atom or an alkyl group, with the proviso that the carbon atom bearing R
3
and R
4
and the carbon atom bearing R
5
and R
6
are bound to the respective arylene groups at the ortho position to the Ar
1
—Ar
2
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.