Iron- or Cobalt-Catalyzed Nazarov Cyclization: Asymmetric Reaction and Tandem Cyclization-Fluorination Reaction

被引：67

作者：

Kawatsura, Motoi ^{[1
]}

Kajita, Koji ^{[1
]}

Hayase, Shuichi ^{[1
]}

Itoh, Toshiyuki ^{[1
]}

机构：

[1] Tottori Univ, Grad Sch Engn, Dept Chem & Biotechnol, Tottori 6808552, Japan

来源：

SYNLETT | 2010年 / 08期

关键词：

iron catalyst; cobalt catalyst; Nazarov cyclization; fluorination; SUBSTITUTED DIVINYL KETONES; STEREOSELECTIVE-SYNTHESIS; OXYALLYL INTERMEDIATE; PYRROLE DERIVATIVES; EFFICIENT CATALYSIS; MICHAEL ADDITION; ACID; (E)-3-CROTONOYLOXAZOLIDIN-2-ONE; REARRANGEMENT; CONSTRUCTION;

D O I：

10.1055/s-0029-1219782

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

We succeeded in demonstrating the iron- or cobalt-catalyzed asymmetric Nazarov cyclization of divinyl ketones using iron or cobalt catalysts, which were prepared from Co(ClO(4))(2)center dot 6H(2)O, Fe(ClO(4))(2)center dot 6H(2)O, or Fe(OTf)(2) with a chiral pybox-type ligand. Furthermore, we found that Fe(OTf)(2) effectively catalyzed the tandem Nazarov cyclization-fluorination reaction of divinyl ketones.

引用

页码：1243 / 1246

页数：4

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