Synthesis and properties of optically active 1,1':5',1":5",1"'-hexol (QUANOL).
Optically active (R,R,R)- and (R,S,R)-1,1':5',1":5",1'"-quatemaphthalene-2,2',6',2",6",2"'-hexol (QUANOL) were prepared from (R)-BINOL in five steps. The CD spectrum of (R,R,R)-QUANOL showed a larger A value than those of (R)-BINOL and (R,S,R)-QUANOL, but additivity of the axial chiralities in the A value was not observed. Other basic properties for the use of QUANOL as a chiral ligand are also reported.
Sugimur
T
T
Faculty of Science, Himeji Institute of Technology, Ako-gun, Hyogo, Japan. sugimura@sci.himeji-tech.ac.jp
Kurita
S Y
SY
Inoue
S
S
Fujita
M
M
Okuyama
T
T
Tai
A
A