The 2-(2-Azidoethyl)cycloalkanone Strategy for Bridged Amides and Medium-Sized Cyclic Amine Derivatives in the Aubé-Schmidt Reaction
作者:John Murphy、Fraser Macleod、Stuart Lang
DOI:10.1055/s-0029-1219340
日期:2010.3
2-(2-Azidoethyl)cycloalkanones afford bridged lactams in the Aube-Schmidt reaction, sometimes in excellent yield, and solvolysis yields derivatives of medium-ring amines. Attempts to divert the Schmidt reaction with an arene-mediated fragmentation of the normal Schmidt intermediate have led to an initial example.
Synthesis of Pyrrolidines by a Csp
<sup>3</sup>
‐Csp
<sup>3</sup>
/Csp
<sup>3</sup>
‐
<i>N</i>
Transition‐Metal‐Free Domino Reaction of Boronic Acids with γ‐Azido‐
<i>N</i>
‐Tosylhydrazones
The reactionbetween γ‐azido‐N‐tosylhydrazones and boronic acids leads to the obtention of 2,2‐disubstituted pyrrolidines in a domino process that includes 1) diazoalkane formation, 2) intermolecular carboborylation of the diazocompound, and 3) intramolecular carborylation of the azide, and comprises the formation of a Csp3−Csp3 and a Csp3−N bonds on the same carbon atom. The reaction proceeds without