| abstract |
NEW MATERIAL:A compound expressed by formula I [R-BINAP represents formula II (R represents H or methyl); M represents Zn, Al, Ti or Sn; X represents N(C2H5)3 or CH3CO2; when X represents N(C2H5)3, l is 2, m is 1 and k is 4 when M represents Zn, 5 when M represents Al and 6 when M represents Ti or Sn; when X represents CH3CO2, l is 1, m is 2, and k is 2 when M represents Zn, 3 when M represents Al and 4 when M represents Ti or Sn]. EXAMPLE:Bis[ruthenium (2,2'-bis(di-p-tolylphosphino)-1,1'-binaphthyl)hexachloro tin]triethylamine. USE:A catalyst for various kinds of organic synthetic reaction, especially asymme tric hydrogenation reaction, etc. PREPARATION:A compound expressed by formula III, which is obtained by reacting ruthenium chloride with cycloocta-1,5-diene (abbreviated as COD), is reacted with R-BINAP in a solvent such as toluene in the presence of triethylamine while being heated. |