126455-10-5Relevant academic research and scientific papers
Diastereo-face selectivity in the aldol reaction of boryl enolate derived from Oppolzer's sultam
Iseki, Katsuhiko,Oishi, Satoshi,Kobayashi, Yoshiro
, p. 2003 - 2008 (2007/10/03)
In the Oppolzer aldol reaction, aldehyde reacts exclusively on the Si face (C(α)-Si attack) of the double bond of the boryl enolate 2 derived from (1S,2R)-N-propionylbornane-10,2-sultam (1), providing only 3a stereoselectively. Hexafluoroacetone (4) cause
Reversal of Stereoselectivity in the Aldol Reaction of Boron Enolate Derived from Oppolzer's Sultam with α,α-Difluoro and α,α,α-Trifluoro Carbonyl Compounds
Iseki, Katsuhiko,Oishi, Satoshi,Kobayashi, Yoshiro
, p. 1135 - 1138 (2007/10/02)
Hexafluoroacetone causes the complete reversal of stereochemistry in the aldol reaction of boron enolate derived from Oppolzer's sultam in the absence of Lewis acids such as TiCl4.Trifluoroacetaldehyde and 2,2-difluoro-5-phenyl-1-pentanal cause partial re
THE ABSOLUTE CONFIGURATIONS AT 8 And 9-CARBONS OF ADDA, AN AMINO ACID COMPONENT OF A HEPATOTOXIN, CYANOVIRIDIN RR
Tsukuda, Takuo,Kakisawa, Hiroshi,Painuly, Praba,Shimizu, Yuzuru
, p. 4245 - 4248 (2007/10/02)
The absolute configurations at 8 and 9-positions of Adda (2), a component of cyanoviridin RR isolated from Microcystis species (Cyanobacteria), have been synthetically determined as S, S.
