Selective Cleavage of N-Benzyl-Protected Secondary Amines by Triphosgene
摘要:
A series of competition experiments has revealed that selective cleavage of N-benzyl-protected secondary amines can be achieved with triphosgene, thereby providing a useful range of carbamoyl chlorides.
A Novel Chiral Pentamine Ligand for Enantioselective α-Alkylation of Acyclic Lithium Amide Enolates. Optimization of Chiral Ligands for Asymmetric Reactions Using Solid-Phase Organic Synthesis
[GRAPHICS]A novel pentamine ligand has been developed for enantioselective alpha-alkylation of simple acyclic lithium amide enolates. It has been demonstrated that solid phase organic synthesis provides a powerful and rapid method for finding efficient chiral ligands.