Chemoselective Nucleophilic Attack on N-Acyl Derivatives of (S)-Ethyl 4,4-Dimethyl Pyroglutamate (DMPG)
摘要:
[GRAPHICS]Heteronucleophiles and C-nucleophiles chemoselectively react with n-acyl (S)-ethyl 4,4-dimethyl pyroglutamate (DMPG) affording esters, amides, and ketones in high yield. The intramolecular process allows the stereoselective formation of beta-hydroxy acids likely by formation and ring opening of the corresponding beta-lactones.
Chemoselective Nucleophilic Attack on N-Acyl Derivatives of (S)-Ethyl 4,4-Dimethyl Pyroglutamate (DMPG)
摘要:
[GRAPHICS]Heteronucleophiles and C-nucleophiles chemoselectively react with n-acyl (S)-ethyl 4,4-dimethyl pyroglutamate (DMPG) affording esters, amides, and ketones in high yield. The intramolecular process allows the stereoselective formation of beta-hydroxy acids likely by formation and ring opening of the corresponding beta-lactones.