Diastereoselective Ritter Reactions of Chiral Cyclic N-Acyliminium Ions: Synthesis of Pyrido- and Pyrrolo[2,3-d]oxazoles and 4-Hydroxy-5-N-acylaminopyrrolidines and 5-Hydroxy-6-N-acylaminopiperidines
摘要:
Pyrido- and pyrrolo[2,3-d]oxazoles can be conveniently prepared in high yield from the Ritter reaction of nitriles and in situ generated chiral cyclic N-acyliminium ions. cis-4-Hydroxy-5-acylaminopyrrolidines and cis-5-hydroxy-6-acylaminopiperidines can be readily obtained by acid hydrolysis of these bicyclic heterocyclic compounds, respectively.
Diastereoselective Ritter Reactions of Chiral Cyclic <i>N</i>-Acyliminium Ions: Synthesis of Pyrido- and Pyrrolo[2,3-<i>d</i>]oxazoles and 4-Hydroxy-5-<i>N</i>-acylaminopyrrolidines and 5-Hydroxy-6-<i>N</i>-acylaminopiperidines
作者:Ian R. Morgan、Arife Yazici、Stephen G. Pyne、Brian W. Skelton
DOI:10.1021/jo800007g
日期:2008.4.1
Pyrido- and pyrrolo[2,3-d]oxazoles can be conveniently prepared in high yield from the Ritter reaction of nitriles and in situ generated chiral cyclic N-acyliminium ions. cis-4-Hydroxy-5-acylaminopyrrolidines and cis-5-hydroxy-6-acylaminopiperidines can be readily obtained by acid hydrolysis of these bicyclic heterocyclic compounds, respectively.