Recoverable Chiral Sulfoxide: Asymmetric Diels–Alder Reaction Using Optically Active 1-(2-p-Tolylsulfinyl)pyrrolylα,β-Unsaturated Ketones as a Dienophile
Recoverable Chiral Sulfoxide: Asymmetric Diels–Alder Reaction Using Optically Active 1-(2-p-Tolylsulfinyl)pyrrolylα,β-Unsaturated Ketones as a Dienophile
1,6-Asymmetric Induction during the Conjugate Addition of Arylcopper Reagents to a Chiral Sulfinyl-Substituted Pyrrolyl .ALPHA., .BETA.-Unsaturated Amide.
The asymmetric conjugate addition of arylcopper reagents derived from arylGrignardreagents and copper(I) iodide to a chiral 1-[2-(p-tolylsulfinyl)]pyrrolyl cinnamide proceeded smoothly to give (3R)-adducts with high diastereoselectivities (> or =92% de) in high yields. Conjugate additions either of the cinnamide with the alkyl Grignard reagent-copper(l) iodide combination or of the crotonamide derivative
1,6-Asymmetric Induction during the Conjugate Addition of Arylcopper Reagents to Chiral Sulfinyl-substituted Pyrrolyl <i>α</i>,<i>β</i>-Unsaturated Enones
Asymmetric conjugate additions of arylcopper reagents, derived from aryl Grignard reagents and copper(I) iodide, to a chiral sulfinyl pyrrolyl α,β-unsaturated enones have been achieved.