4-METHYL-4-TRICHLOROMETHYL-2,5-CYCLOHEXADIEN-1-ONE)

🧪 1. Basic Information

• Chemical Name: 4-Methyl-4-trichloromethyl-2,5-cyclohexadien-1-one

• Molecular Formula: C₇H₅Cl₃O

• Structural Features:

  • Contains both a carbonyl group (C=O) and a trichloromethyl group (–CCl₃)

  • The cyclohexadienone structure is highly reactive and can generate radicals under light exposure

⚙️ 2. Main Functions and Applications

1️⃣ Photoinitiator Intermediate

• The primary application of this compound is as a key intermediate for photoinitiators and photosensitive materials.

• Under UV irradiation, it undergoes photochemical cleavage to produce free radicals, which initiate polymerization of monomers.

• It is commonly used in the production of:

  • UV-curable coatings

  • UV-curable printing inks

  • Photoresists

  • Light-curable adhesives

2️⃣ Free Radical Generator

• Due to the presence of the –CCl₃ group, it can easily undergo photolysis or thermolysis to produce chlorine and acyl radicals.

• Therefore, it is often used as a radical source in organic synthesis and polymerization research.

3️⃣ Raw Material for Photosensitive and Electronic Chemicals

• Used in the preparation of photosensitive films, printing plates, and photopolymer resins,
  
  functioning as a photosensitive component or sensitizer to enhance system reactivity and sensitivity.

⚠️ 3. Safety and Handling

• This compound is photosensitive and should be stored away from light.

• May cause irritation to skin and eyes; proper protective equipment is recommended.

• Storage conditions: cool, dry, sealed, and protected from light.

✅ 4. Summary

4-Methyl-4-trichloromethyl-2,5-cyclohexadien-1-one is a light-sensitive organic intermediate,

mainly used in the production of photoinitiators, photopolymer materials, and UV-curable systems.

It plays an important role in photoresist manufacturing, electronic chemicals, printing inks, and coating industries.