103383-43-3Relevant articles and documents
N-Ethyl-5-phenylisoxazolium-3'-sulfonate (Woodward's Reagent K) as a Reagent for Nucleophilic Side Chains of Proteins
Llamas, Kathryn,Owens, Mark,Blakeley, Robert L.,Zerner, Burt
, p. 5543 - 5548 (2007/10/02)
N-Ethyl-5-phenylisoxazolium-3'-sulfonate (1) is converted to the corresponding keto ketenimine in a hydroxide-promoted reaction with k-OH=6.64E5 M-1s-1 at 25 deg C.The rate law for spontaneous hydration