TY - JOUR
T1 - Highly Enantioselective Cyclopropanation with Co(II)-Salen Complexes
T2 - Control of cis- and trans-Selectivity by Rational Ligand-Design
AU - Niimi, Tatsuo
AU - Uchida, Tatsuya
AU - Irie, Ryo
AU - Katsuki, Tsutomu
PY - 2001/1
Y1 - 2001/1
N2 - Cyclopropanation of styrene derivatives with alkyl α-diazoacetate in the presence of the second-generation (salen)cobalt(II) complex 6 proceeded with excellent cis- and enantioselectivity. On the other hand, the cyclopropanation in the presence of complex 14 which was designed on the basis of the mechanism of asymmetric induction by complex 6 showed good trans- and excellent enantio-selectivity.
AB - Cyclopropanation of styrene derivatives with alkyl α-diazoacetate in the presence of the second-generation (salen)cobalt(II) complex 6 proceeded with excellent cis- and enantioselectivity. On the other hand, the cyclopropanation in the presence of complex 14 which was designed on the basis of the mechanism of asymmetric induction by complex 6 showed good trans- and excellent enantio-selectivity.
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U2 - 10.1002/1615-4169(20010129)343:1<79::aid-adsc79>3.0.co;2-8
DO - 10.1002/1615-4169(20010129)343:1<79::aid-adsc79>3.0.co;2-8
M3 - Article
AN - SCOPUS:0002746107
SN - 1615-4150
VL - 343
SP - 79
EP - 88
JO - Advanced Synthesis and Catalysis
JF - Advanced Synthesis and Catalysis
IS - 1
ER -