Cobalt(II) Porphyrin Catalyzed Cascade Reaction of Pyrrolyl Ketones for Construction of Polysubstituted Pyrrolizidines and Pyrrolizines
作者:Fei Hao、Annapureddy Rajasekar Reddy、Cong-Ying Zhou、Chi-Ming Che
DOI:10.1002/adsc.201701472
日期:2018.4.3
via a cobalt(II) porphyrin catalyzed intramolecular cyclopropanation/ring opening cascade reaction of hydrazones derived from pyrrolyl ketones. With CoII(F20TPP) as catalyst, a variety of pyrrolyl ketones underwent condensation, intramolecular cyclopropanation/ring opening cascade reaction and subsequent oxidation or reduction to give 3H‐pyrrolizines or pyrrolizidines in good yields. This Co(II) catalyzed
我们开发了一种通过钴(II)卟啉催化的分子内丙烷环丙烷化/开环级联反应从吡咯基酮衍生而来的多取代3 H-吡咯烷酮和吡咯烷核苷的合成方法。以Co II(F 20 TPP)为催化剂,各种吡咯基酮进行缩合,分子内环丙烷化/开环级联反应,然后进行氧化或还原,从而以良好的收率得到3 H-吡咯烷酮或吡咯烷核苷。这种由Co(II)催化的级联反应提供了从容易获得的起始原料中快速接近多取代3 H-吡咯烷酮和吡咯烷核苷的途径。