138201-37-3Relevant academic research and scientific papers
Highly diastereoselective synthesis of β-hydroxy amides from β-keto amides
Bartoli, Giuseppe,Bosco, Marcella,Marcantoni, Enrico,Massaccesi, Massimo,Rinaldi, Samuele,Sambri, Letizia
, p. 3092 - 3096 (2004)
β-Hydroxy amides with stereodefined geometry represent an important unit present in various natural products. The diastereoselective preparation of amides carrying a secondary or tertiary alcohol in β-position is described here.
Crossed aldol reaction using cross-linked polymer-bound lithium dialkylamide
Seki, Atsushi,Ishiwata, Fusae,Takizawa, Youichi,Asami, Masatoshi
, p. 5001 - 5011 (2007/10/03)
Cross-linked polymer-bound lithium dialkylamides were employed in crossed aldol reaction of various carbonyl compounds with aldehydes to afford the corresponding β-hydroxycarbonyl compounds. The introduction of spacer chains to the polymer-bound lithium d
One-pot highly stereoselective reduction of β-keto amides to syn-γ-aminols
Bartoli, Giuseppe,Bosco, Marcella,Dalpozzo, Renato,Marcantoni, Enrico,Massaccesi, Massimo,Rinaldi, Samuele,Sambri, Letizia
, p. 8811 - 8815 (2007/10/03)
In the presence of titanium tetrachloride, the borane/tetrahydrofuran complex can reduce 2-methyl-3-oxoamides into the corresponding syn-aminols in good yields and high diastereoselectivity. The use of borane/dimethyl sulfide instead of BH3/THF
Stereoselective reduction of 2-methyl-3-oxo esters (or amides) with sodium borohydride catalyzed by manganese (II) chloride or tetrabutylammonium borohydride. A practical preparation of erythro and threo-3-hydroxy-2-methyl esters (or amides)
Taniguchi, Masahiko,Fujii, Hideaki,Oshima, Koichiro,Utimoto, Kiitiro
, p. 11169 - 11182 (2007/10/02)
erythro-3-Hydroxy-2-methylpropionates or erythro-3-hydroxy-2-methylpropionamides were prepared with high stereoselectivity by NaBH4 reduction of the corresponding 2-methyl-3-oxo esters or 2-methyl-3-oxo amides in the presence of a catalytic amount of manganese(II) chloride. On the other hand, reduction of these substrates with n-Bu4NBH4 provided threo-isomers selectively. erythro-Selective reduction of 2-methyl-3-oxo amides with NaBH3CN in 1N HCl-MeOH is also described.
A PRACTICAL AND STEREOSELECTIVE REDUCTION OF 3-KETO-2-METHYL ESTERS OR 3-KETO-2-METHYL AMIDES INTO ERYTHRO-3-HYDROXY-2-METHYL ESTERS OR ERYTHRO-3-HYDROXY-2-METHYL AMIDES WITH NaBH4 CATALYZED BY MnCl2
Fujii, Hideaki,Oshima, Koichiro,Utimoto, Kiitiro
, p. 6147 - 6150 (2007/10/02)
Erythro-3-hydroxy-2-methylpropionates or erythro-3-hydroxy-2-methylpropionamides were prepared with high stereoselectivity by NaBH4 reduction of the corresponding 3-keto esters or 3-keto amides in the presence of a catalytic amount of MnCl2.
