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623-40-5 Synthesis

623-40-5
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4609-89-6
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Yield:4609-89-6 87%

Reaction Conditions:

with dihydrogen peroxide;ammonium carbonate in propan-1-ol;water at 75; under 1125.11 Torr;

Steps:

5

A mixture of 101 g of 2-pentanone oxime and 600 g of propanol (30% water content) was mixed with a mixer,Hydrogen peroxide (content of 50%) 34g with metering pump B0.1 g of a V-Mo-SBA-15 catalyst (silicon metal ratio of 65) was continuously added,Ammonium carbonate 0.1g reactor, the temperature 75 , pressure 0.15MPa.Membrane separation of the reaction solution by de-desulfurization after distillation2-nitrophenyl pentane 55.6 g,The yield was 87%Purity of 99.3%. , Unreacted oxime and solvent are recovered and returned to continue the ammoximation reaction.

References:

CN106631809,2017,A Location in patent:Paragraph 0025; 0026