862789-42-2Relevant academic research and scientific papers
Copper complex of aminoisoborneol schiff base Cu2(SBAIB-d) 2: An efficient catalyst for direct catalytic asymmetric nitroaldol (henry) reaction
Boobalan, Ramalingam,Lee, Gene-Hsian,Chen, Chinpiao
, p. 2511 - 2520 (2012)
A new bifunctional copper complex of the aminoisoborneol Schiff base - Cu2(SBAIB-d)2 - has been developed for the effective direct catalytic asymmetric Henry reaction. One mol% of this catalyst produces the expected Henry products in high yields (up to 99%) with excellent enantioselectivities (up to 98% ee). The utility of the present catalyst was also extended to the Henry reaction with nitroethane and 1-nitropropane that furnished the corresponding products in moderate to high yields (up to 99%) with moderate to high enantioselectivities of syn (up to 98% ee) and anti (up to 98% ee) diastereomers. The highlights of this catalytic system are easy manipulation, air and moisture tolerance, the need for 1 mol% of an easily synthesizable catalyst and the high enantioselectivities achieved for a wide range of substrates. Copyright
(S)-Pyrrolidine-containing chiral manganese(III)-salalen and -salan complexes as catalysts for the asymmetric henry reaction
Kumar, Pramod,Chauhan, Manmohan Singh,Yadav, Geeta Devi,Singh, Surendra
, p. 267 - 271 (2016/01/20)
Chiral Mn(III)-salalen and -salan complexes derived from (S)-proline have been used as catalysts for the asymmetric Henry (nitro-aldol) reaction. We have also used this methodology for a variety of substrates to afford nitroaldol products in 40-94% yields
Enantioselective Henry (nitroaldol) reaction catalyzed by axially chiral guanidines
Ube, Hitoshi,Terada, Masahiro
scheme or table, p. 3895 - 3898 (2010/03/25)
The enantioselective activation of nitroalkanes was attempted on the basis of the complexation between chiral guanidinium and nitronate through two hydrogen bonds. The proposed enantioselective activation was applied to the diastereo- and enantioselective
