A novel one-pot synthesis of homochiral (R)-(–)- and (S)-(+)- Fe(CO)(η5-C5H5)(PPh3)COCH3
Abstract
Treatment of the salt [Fe(CO)2(η5-C5H5)(PPh3)]Br with potassium L-mentholate followed by lithium bromide and methyllithium generates, after work-up and crystallisation, homochiral (S)-(+)-[Fe(CO)(η5-C5H5)(PPh3)COCH3] in 30% yield.