Preparation method of isoindolinone pigment

[0044] Example 1

[0045] Tetrachlorochemisodiphenimic anhydride was 250g, phosphorus phosphorus 182 g, and phosphorus 160g of extol. The chlorinated product was introduced in advance to the reactor of 245 g of ammonia water, and the reactor of 3 g of sodium hydroxide was 3 h. Next, the reaction was reacted for 2 hours at a pressure vessel at 120 ° C. Then cool the temperature, separated, 236.5 g of intermediate TCCBM, ie (1), HPLC detects 99.2%; excess of dimethyl carbonate recovery.

[0046] The 20 g of intermediate TCCBM was added to 88 mL of methanol, and the organic base was 11.5 g of stirring for half an hour, then the 3.6 g of phenylenediamine dissolved in advance was 2 hours at normal temperature, and the temperature was continued to 50 ° C for 1 hour, then transferred to The reaction was reacted in 80 ml of water for 0.5 hours, and the pH is adjusted to 5.5 with a small amount of acetic acid / methicate, cooling filtration, washing, the resulting filter cake is pulped into

[0051] Example 2

[0052] The intermediate TCCBM obtained by 20 g of Example 1 was added to 100 mL of methanol, and the organic base was 12.1 g and stirred for half an hour, and then the 3.55 g of phenylenediamine dissolved in advance was 1 hour at 45 ° C, then warmed to 70 ° C. 1.5-2 hours, then transferred to 80 ml of water to react for 1 hour, adjusting the pH to 6.0 with a small amount of formic acid / hydrochloric acid, cooling filtration, washing, pulling the resulting filter cake, 0.5 g of alkyl naphthalenesulfonic acid, at 50-80 The reaction was reacted for 2 hours, then filtered, washed, dried.

[0053] Example 3

[0054] The intermediate TcCBM obtained by 20 g of Example 1 was added to 90 mL of methanol, and the organic base was 12.0 g of stirring for half an hour, then 4.05 g 2,6-dicharobenzene is reacted at room temperature for 0.5 hours, then warmed to 45 At ° C, the reaction was 1 hour, and finally heated to reflux continued to react for 1-2 hours, and finally transferred to 75 ml of water for 1 hour, and the pH is adjusted to 5.5 with a small amount of acetic acid / sulfate, and the filtered, washed, and the resulting filter cake was pulled. 0.4 g of quaternary ammonium salts were added, and the reaction was reacted at 30-60 ° C for 2 hours, then filtered, washed, dried, and finally green yellow pigment PY 109, 21.9 g.