5634-53-7Relevant articles and documents
Kinetics and mechanism for oxime formation from methyl pyruvate
Cordova,Peraza,Calzadilla,Malpica
, p. 48 - 51 (2002)
Rate and equilibrium constants for methyl pyruvate oxime formation were determined as a function of pH over the range 0-7 in aqueous solution at 30°C and ionic strength 0.5 by spectrophotometric methods. The reaction occurs with rate-determining carbinolamine dehydration over the entire range of pH investigated. Carbinolamine dehydration is not susceptible to detectable general acid-base catalysis by a carboxylic acid buffer or hydroxylamine/hydroxylammonium ion buffer. Specific acid catalysis for carbinolamine formation is dominant at pH values below 5. Above that value, a pH-independent, water-catalyzed reaction becomes apparent. The pH-independent carbinolamine dehydration is unusually important with this substrate. Copyright
Efficient synthesis of oxime using o-tbs-n-tosylhydroxylamine: Preparation of (2z)-4-(benzyloxy)but-2-enal oxime
Kitahara, Katsushi,Toma, Tatsuya,Shimokawa, Jun,Fukuyama, Tohru
, p. 480 - 490 (2014/04/17)
-
Ruthenium-catalyzed hydrovinylation of N-acetylenamines leading to amines with a quaternary carbon center
Wang, Qiu-Shi,Xie, Jian-Hua,Li, Wei,Zhu, Shou-Fei,Wang, Li-Xin,Zhou, Qi-Lin
supporting information; scheme or table, p. 3388 - 3391 (2011/08/21)
A catalytic hydrovinylation of N-acetylenamines with ethylene is reported. This new hydrovinylation reaction is catalyzed by a ruthenium hydride complex, RuHCl(CO)(PCy3)2, providing a series of N-acetylamines with a quaternary carbon center with up to 99% yield.