{HEAD ~ A BINAP} represents {TAIL ~ a tertiary phosphine} represented by formula ##STR6## in which A represents an alkali metal atom; X represents a chlorine atom, a bromine atom, or an iodine atom 
{ HEAD ~ A BINAP } represents { TAIL ~ a tertiary phosphine } represented by formula # # STR6 # # in which A represents an alkali metal atom ; X represents a chlorine atom , a bromine atom , or an iodine atom
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH