Title of article :
Co(II)–salen-catalyzed highly cis- and enantioselective cyclopropanation
Author/Authors :
Niimi، نويسنده , , Tatsuo and Uchida، نويسنده , , Tatsuya and Irie، نويسنده , , Ryo and Katsuki، نويسنده , , Tsutomu، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2000
Abstract :
The reactions of styrene derivatives and t-butyl α-diazoacetate using (R,R)-(salen)cobalt(II) complex 6 as a catalyst in the presence of N-methylimidazole gave the corresponding cyclopropanecarboxylates with excellent enantio- (>95% ee) and high cis-stereoselectivity (98%) as well as good chemical yields.
Keywords :
cis- and enantioselectivity , chiral Co(II)–salen complex , asymmetric cyclopropanation
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
