Diastereoselective synthesis of half-sandwich chiral-at-metal cobaltacycles by oxidative cyclisation
作者:Jahangir Amin、Christopher J. Richards
DOI:10.1039/c2cc34837c
日期:——
Reaction of chiral ester linked diynes with chlorotris(triphenylphosphine)cobalt(I) and sodium cyclopentadienide gave (eta(5)-cyclopentadienyl)(triphenylphosphine) cobaltacyclopentadiene complexes as single chiral-at-metal diastereoisomers, including a non-racemic example synthesised in three steps from (S)-3-butyn-2-ol.
手性酯键连接的二炔与氯三(三苯基膦)钴(I)和环戊二烯酸钠的反应生成了(eta(5)-环戊二烯基)(三苯基膦)钴环戊二烯配合物,为单一的手性金属非对映异构体,包括以三种方式合成的非外消旋实例(S)-3-butyn-2-ol中的步骤。