63738-92-1Relevant articles and documents
Asymmetric synthesis of β-hydroxy sulfonic acids by BINAP/Ru-catalyzed hydrogenation
Kitamura, Masato,Yoshimura, Masahiro,Kanda, Naoki,Noyori, Ryoji
, p. 8769 - 8785 (1999)
BINAP/Ru(II) complexes catalyze enantioselective hydrogenation of sodium β-keto sulfonates in acidic methanol tinder atmospheric pressure of hydrogen at 50 °C to give the corresponding β-hydroxy sulfonates with up to 97% ee in a quantitative yield. The sense of asymmetric induction is predictable. The low-pressure hydrogenation process allows the hectogram-scale synthesis of a variety of optically active β-hydroxy sulfonates, which attract attention in connection with their functions as surfactants, catalysts, enzyme inhibitors, etc.
New heterocyclic precursors for thermal generation of reactive, electron-rich 1,2-diaza-1,3-butadienes
Boeckman Jr., Robert K.,Ge, Ping,Reed, Jessica E.
, p. 3647 - 3650 (2007/10/03)
Figure presented The preparation and thermolysis of new stable heterocyclic precursors of 1,2-diaza-1,3-butadienes is described. The resulting reactive diazadienes are trapped in situ with N-phenyldiazamaleimide. The effect of precursor structure on the temperature at which the diazadienes are generated is discussed.