Mannich Synthesis of Acetylenic Amino Alcohols in Aqueous Ionic Liquids
摘要:
Terminal alkynols react with formaldehyde and secondary amines in aqueous ionic liquid [emim]HSO4-, in the presence of Cu(OAc)(2) to afford the corresponding 1-(alpha-hydroxyalkyl)- or 1-(beta-hydroxyalkyl)-2-(aminomethyl)acetylenes in better yields in comparison with the reaction in conventional organic solvents. The catalytic system can be easily recovered and recycled.
Mannich Synthesis of Acetylenic Amino Alcohols in Aqueous Ionic Liquids
作者:Nina I. Simirskaya、Nikolai V. Ignat’ev、Michael Schulte、Sergei G. Zlotin
DOI:10.1016/j.mencom.2012.11.013
日期:2012.11
Terminal alkynols react with formaldehyde and secondary amines in aqueous ionic liquid [emim]HSO4-, in the presence of Cu(OAc)(2) to afford the corresponding 1-(alpha-hydroxyalkyl)- or 1-(beta-hydroxyalkyl)-2-(aminomethyl)acetylenes in better yields in comparison with the reaction in conventional organic solvents. The catalytic system can be easily recovered and recycled.