Вопрос: если используется соль гидроксиламина, надо просто щёлочи чуть больше добавитьThe oxime was prepared by dissolving the pyruvic acid
in 800 cc. of a solution containing 2 mole equivalents of
sodium hydroxide and then adding 1.5 mole equivalents of
hydroxylamine. After standing for 36 hours, the oxime was
precipitated with dilute hydrochloric acid. The yield was
95%, based on the weight of the phenylpyruvic acid
Спасибо!