New Ring Expansion of Cyclobutanones: Synthesis of Pyrrolinones, Pyrrolidines and Pyrroles
作者:Norbert De Kimpe、Guido Verniest、Stefaan Boterberg、Filip Bombeke、Christian V. Stevens
DOI:10.1055/s-2004-822900
日期:——
2-Dichlorocyclobutanones reacted with various amines to give ring opening leading to 4,4-dichlorobutanamides. These compounds proved to be suitable substrates for the synthesis of 3-pyrrolin-2-ones, 2-pyrrolidinones, pyrrolidines and pyrroles.
2,2-二氯环丁酮与各种胺反应开环,生成 4,4-二氯丁酰胺。这些化合物被证明是合成 3-吡咯啉-2-酮、2-吡咯烷酮、吡咯烷和吡咯的合适底物。