441012-04-0Relevant articles and documents
Enantioselective Aza-Henry Reaction Catalyzed by a Bifunctional Organocatalyst
Okino, Tomotaka,Nakamura, Satoru,Furukawa, Tomihiro,Takemoto, Yoshiji
, p. 625 - 627 (2004)
(Matrix presented) The aza-Henry reaction of imines with nitroalkanes was promoted by chiral thiourea with an N,N-dimethylamino group to give β-nitroamines with good enantioselectivity. Various N-protected imines were examined as substrates. N-Phosphinoyl
Iron-Catalyzed Asymmetric Nitro-Mannich Reaction
Dudek, Agata,Mlynarski, Jacek
, p. 11218 - 11224 (2017/10/27)
The first enantioselective addition of nitroalkanes to imines (nitro-Mannich reaction), mediated by an iron(II) catalyst assembled by a hindered hydroxyethyl-pybox ligand, is described. This valuable carbon-carbon bond-forming reaction proceeds smoothly at room temperature to afford enantioenriched β-nitro amines in good yields and high enantioselectivity, up to 98% with unprecedentedly low iron catalyst loading (5 mol %).
The amino thiourea-catalyzed asymmetric nucleophilic reactions
Takemoto, Yoshiji,Miyabe, Hideto
, p. 269 - 275 (2008/02/06)
Bifunctional amino thiourea-catalyzed asymmetric additions of several nucleophiles into electron-deficient unsaturated compounds such as nitroolefins, α,β-unsaturated imides, imines, and azodicarboxylates are described. We discovered that bifunctional thi
Reaction of nitroorganic compounds using thiourea catalysts anchored to polymer support
Miyabe, Hideto,Tuchida, Sayo,Yamauchi, Masashige,Takemoto, Yoshiji
, p. 3295 - 3300 (2008/09/17)
Immobilization of chiral thiourea catalyst was studied. The PEG-bound thiourea showed better catalytic activity than those of the carboxypolystyrene HL resin-bound and TentaGel carboxy resin-bound thioureas. In the presence of PEG-bound thiourea, Michael and tandem Michael reactions of trans-β- nitrostyrene proceeded enantioselectively. Georg Thieme Verlag Stuttgart.
Catalytic asymmetric syntheses of ICI-199441 and CP-99994 using nitro-Mannich reaction
Tsuritani, Natsuko,Yamada, Ken-Ichi,Yoshikawa, Naoki,Shibasaki, Masakatsu
, p. 276 - 277 (2007/10/03)
Catalytic asymmetric syntheses of ICI-199441 and CP-99994 were achieved using the nitro-Mannich reaction as a key step.