Organocatalytic enantioselective Michael addition of malononitrile to nitroolefins catalyzed by bifunctional thiourea
A novel enantioselective Michael addition of malononitrile to trans-β-nitroolefins in the presence of bifunctional amine thiourea organocatalyst is developed. The Michael reaction catalyzed by amine thioureas containing both central and axial chiral eleme
Organocatalytic highly enantio- and diastereoselective Mannich reaction of β-ketoesters with N-boc-aldimines
(Figure Presented) The catalytic enantioselective Mannich reaction promoted by chiral bifunctional organocatalysts is described. The treatment of β-ketoesters with N-Boc-aldimines under mild reaction conditions afforded the corresponding β-amino β-ketoest
Kang, Young Ku,Kim, Dae Young
supporting information; experimental part
p. 5734 - 5737
(2009/12/08)
Enantio- and diastereoselective mannich-type reactions of α-Cyano ketones with N-Boc aldimines catalyzed by chiral bifunctional urea
The catalytic enantioselective electrophilic Mannich-type reaction promoted by chiral bifunctional organocatalysts is described. The treatment of a-cyano ketones with N-Boc-aldimines under mild reaction conditions afforded the corresponding β-amino-α-cyan
Lee, Ju Hee,Kim, Dae Young
supporting information; experimental part
p. 1779 - 1782
(2011/02/26)
Catalytic enantioselective electrophilic α-hydrazination of β-ketoesters using bifunctional organocatalysts
The catalytic enantioselective electrophilic α-hydrazination promoted by chiral bifunctional organocatalysts is described. Treatment of β-ketoesters with azodicarboxylates as electrophilic amination reagents under mild reaction conditions afforded the cor
Jung, Sun Hee,Kim, Dae Young
p. 5527 - 5530
(2008/12/22)
Enantioselective direct amination of α-cyanoketones catalyzed by bifunctional organocatalysts
The catalytic enantioselective electrophilic α-amination promoted by chiral bifunctional organocatalysts is described. Treatment of α-cyanoketones with azodicarboxylates as electrophilic animation reagents under mild reaction conditions afforded the corresponding a-aminated α-cyanoketones with excellent enantiomeric excesses (87-99%).
Kim, Sun Mi,Lee, Ju Hee,Kim, Dae Young
experimental part
p. 2659 - 2662
(2009/05/09)
Organocatalytic enantioselective Michael addition of 2,4-pentandione to nitroalkenes promoted by bifunctional thioureas with central and axial chiral elements
(Chemical Equation Presented) Two novel bifunctional amine-thiourea organocatalysts 1 and 2, which both bear central and axial chiral elements, have been developed to promote enantioselective Michael reaction between 1,3-dicarbonyl compounds and nitro ole
Get Best Price for1984862-45-4N-[3,5-bis(trifluoroMethyl)phenyl-N'-[(1R,2R)-2-(11bS)3,5-dihydro-4H-dinaphth[2,1-c:1',2'-e]azepin-4-yl]cyclohexyl]-thiourea