1-Substituted imidazoles was ozonolyzed cleanly without any complicated procedures into the corresponding N-acylamides, which were regarded to be much useful derivatives of either amines or acyl compounds.
Cyclopropylamines from N,N-Dialkylcarboxamides and Grignard Reagents in the Presence of Titanium Tetraisopropoxide or Methyltitanium Triisopropoxide
作者:Armin de Meijere、Vladimir Chaplinski、Harald Winsel、Markus Kordes、Björn Stecker、Vesta Gazizova、Andrei I. Savchenko、Roland Boese、Farina Schill née Brackmann
DOI:10.1002/chem.201001550
日期:2010.12.10
Thirty‐three different N,N‐dialkyl‐ and N‐alkyl‐N‐phosphorylalkyl‐substituted carboxamides 9–17 were treated with unsubstituted as well as with 2‐alkyl‐, 2,2‐dialkyl‐, and 3‐alkenyl‐substituted ethylmagnesium bromides 6 in the presence of stoichiometric amounts of titanium tetraisopropoxide or methyltitanium triisopropoxide to furnish substitutedcyclopropylamines 20–25 in 20–98 % yield, depending
1-Substituted imidazoles was ozonolyzed cleanly without any complicated procedures into the corresponding N-acylamides, which were regarded to be much useful derivatives of either amines or acyl compounds.