Generation of chiral (η5-indenyl)2(η3-allyl)Ti complex and its highly enantioselective reaction with carbonyl compounds

Article abstract of DOI:10.1016/00404-0399(50)1070X-

The (η⁵-indenyl)₂(η³-2-alkyl-1-methylallyl)Ti complex 10, successfully generated from (η⁵-indenyl)₂TiCl₂ 8, 2-alkylbutadiene, and i-PrMgCl, reached with carbon dioxide or RCHO (R = Ph, ET, i-Pr, or t-Bu) to give the corresponding optically active β,γ-unsaturated carboxylic acid 11 or threohomoallyl alcohols 12-15 with high enantiomeric purities of up to 96%.