申请人:Dominguez Beatriz
公开号:US20060229473A1
公开(公告)日:2006-10-12
A substituted paracyclophane is described of formula (I) wherein X
1
and X
2
are linking groups comprising between 2 to 4 carbon atoms, Y
1
and Y
2
are selected from the group consisting of hydrogen, halide, oxygen, nitrogen, alkyl, cycloalkyl, aryl or heteroaryl, Z
1
, Z
2
and Z
3
are substituting groups that optionally contain functional groups, a, b, c, d, e and f are 0 or 1 and a+b+c+d+e+f=1 to 6. Preferably X
1
and X
2
are —(C
2
H
4
)— and a+b+c+d+e+f=1 or 2. The substituted paracyclophane provides transition metal catalysts that demonstrate high activity and selectivity for asymmetric reactions.