?-COMPLEXES OF TRANSITION METALS IN ORGANIC SYNTHESIS: 8. COUPLED ADDITION OF ALLYL Mn(II)-ORGANIC COMPOUNDS TO ESTERS AND NITRILES OF α,β-UNSATURATED CARBOXYLIC ACIDS

Article abstract of DOI:10.1007/BF00961710

Allyl Mn(II)-organic compounds R¹CH=C(R²)CH2MnCl (R¹ = H, Me; R² = H, Me, Bu, PhCH2) react with esters and nitriles of crotonic, trans-2-hexenoic, sorbic, cinnamic, maleic, fumaric, heptylidenemalonic, and trans-(2-butenylidene)malonic acids in THF at -78 to -60 deg C giving 1,4-addition products.A single diastereomer is formed in the case of MeCH=CHCO2Me and PrCH=CHCO2Me.