Author/Authors :
Golubev، نويسنده , , Alexander S. and Schedel، نويسنده , , Hartmut and Radics، نويسنده , , Gabor and Fioroni، نويسنده , , Marco and Thust، نويسنده , , Sven and Burger، نويسنده , , Klaus، نويسنده ,
Abstract :
Starting from hexafluoroacetone-protected (S)-glutamic acid, trans-5-fluoropipecolic and 5,5-difluoropipecolic acid have been synthesized. The piperidine ring was constructed by an intramolecular metal carbenoid NH insertion.
Keywords :
Glutamic Acid , Hexafluoroacetone , diazo ketones , DAST fluorination , Metal carbenoid NH insertion