Exchange Processes in Shibasaki's Rare Earth Alkali Metal BINOLate Frameworks and Their Relevance in Multifunctional Asymmetric Catalysis
Shibasaki's rare earth alkali metal BINOLate (REMB) catalysts (REMB; RE = Sc, Y, La - Lu; M = Li, Na, K; B = 1,1-bi-2-naphtholate; RE/M/B = 1/3/3) are among the most successful enantioselective catalysts and have been employed in a broad range of mechanis
Robinson, Jerome R.,Gu, Jun,Carroll, Patrick J.,Schelter, Eric J.,Walsh, Patrick J.
p. 7135 - 7144
(2015/06/25)
Facile preparation of allyl amines and pyrazoles by hydrazinolysis of 2-ketoaziridines
Allyl amines and pyrazoles can be obtained by hydrazinolysis of 2-ketoaziridines. A variety of aziridines, including N-unprotected, N-substituted, as well as bicyclic enamine and aminal type, can be transformed into diversely substituted linear or cyclic products. The hydrazinolysis of homochiral aziridines proceeds without racemization.
Chen, Gang,Sasaki, Mikio,Yudin, Andrei K.
p. 255 - 259
(2007/10/03)
A novel two-step preparation of enaminoketones by amination of α,β- unsaturated ketones with methoxyamine
β-Methoxyaminoketones, derived from the addition of methoxyamine to 1,3-diaryl-2-propen-1-one, underwent base-induced β-elimination to furnish the corresponding enaminoketones in good to moderate yields. The reaction conditions and substituents on the substrates significantly influenced the selectivity in the production of enaminoketone and/or aziridineketone.
Seko, Shinzo,Tani, Nobuhiro
p. 8117 - 8120
(2007/10/03)
Synthesis of 4-phenylpiperidines by tandem Wittig olefination-aza-Wittig rearrangement of 2-benzoylaziridines
A number of routes to 2-vinylaziridines are reported.N-Alkylation of a range of 2-benzoyl-3-alkylaziridines with tert-butyl bromoacetate followed by Wittig olefination gave directly a range of 4-phenylpiperidines.The intermediate 2-vinylaziridines rearran
Coldham, Iain,Collis, Alan J.,Mould, Roger J.,Rathmell, Richard E.
p. 2739 - 2746
(2007/10/02)
3-Methoxyamino-1,3-diarylpropan-1-one und N-(N-Phenylcarbamoyl)-Derivate
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Weber, Fritz Gerd,Liepert, Harald
p. 173 - 175
(2007/10/02)
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