Process Research Towards a Scalable Synthesis of the Muscarinic M1 Receptor Subtype Selective Agonist MCD-386

A general, enantioselective synthesis of β- and γ-fluoroamines

In this Letter, we describe a short, high yielding protocol for the enantioselective (87-96% ee) and general synthesis of β-fluoroamines and previously difficult to access γ-fluoroamines from commercial aldehydes via organocatalysis.

Intercepting the Breslow intermediate via Claisen rearrangement: synthesis of complex tertiary alcohols without organometallic reagents

A novel Claisen rearrangement in which the Breslow intermediate is engaged as a hydroxy-substituted N,S-ketene acetal to provide complex 3° alcohols without the use of organometallic reagents is reported. The reaction constitutes an unprecedented reactivity mode for the Breslow intermediate.