NK94827

NK94827 化学特性,用途語,生産方法

• 使用

  Monosulfuron Ester is herbicidal compound containing Monosulfuron-Ester and Nicosulfuron.

• 合成

  The synthesis steps for NK94827 are as follows:
  (1) Add oxalyl dichloride (6 mL, 70 mmol) and DABCO (Triethylene Diamine, 112 mg, 1 mmol) to the stirred solution of sulfonamide (20 mmol) in dry toluene (50 mL) at 60°C.
  (2) Leave the reaction on at 60-65°C for 6 h with continual stirring and warm to 110°C slowly.
  (3) Reflux for 10-12 h and remove the resulting precipitate by filtration.
  (4) Cool the reaction to room temperature and condense in vacuo.
  (5) Dilute with 50 mL acetonitrile.
  (6) Add the above-mentioned sulfonyl isocyanate solution (4 mL) into a solution of amine (1 mmol) in dry acetonitrile (2 mL).
  (7) Leave the reaction on at room temperature over night with continual stir and filter the precipitate.
  

NK94827 生産企業

Global(8)Suppliers