Domino Michael/Mannich Annulation Reaction of N-Sulfinyl Lithiodienamines

The domino Michael/Mannich (DMM) annulation reaction between an N-sulfinyl lithiodienamine and an electrophilic alkene is developed for the synthesis of chiral 2-amino cyclohexenes, a key building block in asymmetric synthesis. The DMM reaction proceeds at low temperature while maintaining the stereochemical fidelity. The product functionalized amino cyclohexenes, here obtained in 55-82% yield with diastereomeric ratios as high as >19:1.

Automated summary

The DMM reaction is a method for synthesizing chiral 2-amino cyclohexenes that proceeds at low temperature while maintaining stereochemical fidelity. The product yields range from 55-82%, with diastereomeric ratios as high as >19:1.