Photoinitiator of diphenyl sulfide oxime esters as well as preparation method and application thereof
A technology of diphenyl sulfide oxime and photoinitiator, which is applied in the field of diphenyl sulfide oxime ester photoinitiator and its preparation, can solve the problem that the large-screen high-definition display cannot be satisfied, the color photoresist color is not pure enough, and cannot adapt High-end color filters and LED application needs and other issues, to achieve the effect of improving light curing performance, improving production efficiency, and high photosensitive performance
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Embodiment 1
[0028] Preparation of 1-{4-[4-(2-thienoyl)phenylthio]phenyl}-(3-cyclopentyl)-propane-1-ketoxime-O-acetate shown in the following formula
[0029]
[0030] Step (1): Preparation of 1-{4-[4-(2-thienoyl)phenylthio]phenyl}-(3-cyclopentyl)-propan-1-one
[0031]
[0032] Drop 30g of diphenyl sulfide, 21g of AlCl into a 500ml four-necked flask 3 (grind), 150ml dichloromethane, stir, pass into argon protection, ice bath cooling, when the temperature drops to 0 ℃, start to drop the mixed solution of 22.5g 2-thiophenoyl chloride and 21g dichloromethane, temperature Control below 10°C, add about 1.5h, continue to stir for 2h, then add 21g AlCl to the flask 3 (Grind finely), add dropwise a mixture of 27g cyclopentylpropionyl chloride and 20g dichloromethane, control the temperature below 10°C, drop it in about 1.5h, then raise the temperature to 15°C, continue stirring for 2h, and discharge.
[0033] Post-processing:
[0034] Under stirring, slowly pour the material into dilute h...
Embodiment 2-7
[0045] Referring to the method of Example 1, the compounds shown in Examples 2-7 were prepared from corresponding acylating reagents. target product and its 1 H-NMR data are listed in Table 1.
[0046] Table 1
[0047]
[0048]
[0049]
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