Efficient One-Pot Synthesis of Indol-3-yl-Glycines via Uncatalyzed Friedel-Crafts Reaction in Water
作者:Mehdi Ghandi、Abuzar Taheri
DOI:10.3390/molecules14031056
日期:——
The three component reaction of primary aliphatic amines, glyoxalic acid and indole or N-methylindole in water at ambient temperature affords indol-3-yl or N-methylindol-3-yl-glycine in almost quantitative yields.
Indolylglycines Backbones in the Synthesis of Enantiopure 3,3-Spiroindolenines, Indolyl Tetracyclic Hemiaminals, and 3-Indolyl-maleimides Frameworks
作者:Jozef Markus、Branislav Ferko、Dušan Berkeš、Ján Moncol、Ata Martin Lawson、Mohamed Othman、Adam Daïch
DOI:10.1002/ejoc.201900814
日期:2019.9.8
Racemic and enantiopure 3‐indolylglycines (3IGs) were synthesized in high yields and optical purity by using a simple and efficacious Mannich 3CR. A multigram synthesis using (R)‐PEA as chiral auxiliary was realized. The resulting 3IGs were used to provide enantiopure 3,3‐spiroindolenines, indolyl tetracyclic hemiaminals, and 3‐indolylmaleimides following an unexpected pathway.