121099-13-6Relevant articles and documents
Stereoselective Protonation of Carbanions, 4. Enantioselective Protonation of Lactone Enolates
Gerlach, Uwe,Haubenreich, Thomas,Huenig, Siegfried
, p. 1969 - 1980 (2007/10/02)
The prochiral lithium enolates derived from the five-membered lactones rac-1 and rac-2 were protonated by 37 OH- and 21 NH-chiral proton sources in THF at -78 deg C.The enantioselectivities, determined directly from the reaction mixture by chiral HPLC, ar
CsF-Promoted Esterification of Carboxylic Acids. A Practical Alternative to the Diazomethane Method and Direct Conversion of Organotin Carboxylates
Sato, Tsuneo,Otera, Junzo,Nozaki, Hitosi
, p. 2166 - 2169 (2007/10/02)
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STEREOSELECTIVE REDUCTION OF C=X BY A CHIRAL 1,4-DIHYDROPYRIDINE (NADH-MIMIC) IN A SELF-IMMOLATIVE PROCESS
Meyers, A. I.,Brown, Jack D.
, p. 5617 - 5620 (2007/10/02)
A series of prochiral ketones and a prochiral imine was reduced with high absolute stereoselectivity using an optically active 4-methyl-1,4-dihydropyridine in the presence of Mg(ClO4)2.