To provide a new ligand producible by a simple production method, giving a bimetallic axially asymmetric compound having a single structure by finally introducing a chiral from an exterior source, usable in multiple kinds of asymmetric catalytic reactions and having high reaction activity and stereo-selectivity and to provide a method for synthesizing the ligand.
There are provided a 2,2',6,6'-tetrahydroxy-3,3',5,5'-tetrasubstituted biphenyl ligand expressed by formula (1) (wherein R is alkyl, aryl, cycloalkyl, aralkyl or halogen), and a method for producing the 2,2',6,6'-tetrahydroxy-3,3',5,5'-tetrasubstituted biphenyl ligand by reacting an ether-containing biphenyl derivative synthesized by Suzuki coupling or Ullmann coupling reaction with a dealkylation agent.
| JPH0495038 | PHENYLHYDROQUINONE FOR POLYESTER RAW MATERIAL |
| WO/1989/000452 | CATALYST COMPOSITION AND METHOD FOR SELECTIVE DEHYDROGENATION |
| JP2008081450 | METHOD FOR PREPARING PHENOLIC DIMER |
XIE FANG
FANG FANG
UNIV SHANGHAI JIAOTONG
| JPH05117202A | 1993-05-14 |
JPN6013054959; Ｏｒｇａｎｉｃ Ｌｅｔｔｅｒｓ Ｖｏｌ．１０， Ｎｏ．１６, ｐ．３４６９-３４７２ （２００８）．
JPN6013054965; Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｉｎｄｉａｎ Ｃｈｅｍｉｃａｌ Ｓｏｃｉｅｔｙ Ｖｏｌ．４３， Ｎｏ．７, ｐ．４６９-４７２ （１９６６）．
JPN6013054962; Ｃｈｅｍｉｓｃｈｅ Ｂｅｒｉｃｈｔｅ Ｖｏｌ．１０４， Ｎｏ．１, ｐ．４０-４９ （１９７１）．