83846-86-0

Basic information

• Product Name: 4-Isopropylthioxanthone
• Synonyms: 4-(1-methylethyl)-9H-Thioxanthen-9-one;4-Isopropyl-9-thioxanthone;2-ISOPROPYLTHIOXANTHONE/4-ISOPROPYLTHIOXANTHONE;4-ISOPROPYLTHIOXANTHONE;ITX;ISOPROPYLTHIOXANTHONE;9H-Thioxanthen-9-one, 4-(1-methylethyl)-;ISOPROPYL THIOXANTHONE(4 ISOMER)
• CAS NO: 83846-86-0
• Molecular Formula: C16H14OS
• Molecular Weight: 254.35
• EINECS: 281-065-4
• Mol File: 83846-86-0.mol

Chemical Properties

• Boiling Point: 391 °C at 760 mmHg
• Flash Point: 210.2 °C
• Appearance: /
• Density: 1.199 g/cm³
• Vapor Pressure: 2.54E-06mmHg at 25°C
• Refractive Index: 1.638
• Storage Temp.: Refrigerator
• Solubility: Chloroform (Slightly), Ethyl Acetate (Slightly)
• CAS DataBase Reference: 4-Isopropylthioxanthone(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Isopropylthioxanthone(83846-86-0)
• EPA Substance Registry System: 4-Isopropylthioxanthone(83846-86-0)

Safety Data

• Hazard Codes: Xn
• Statements: 22
• WGK Germany: 3
• Hazardous Substances Data: 83846-86-0(Hazardous Substances Data)

Usage

Uses

4-Isopropylthioxanthone is a thioxanthone derivative useful as photoinitiators.

InChI:InChI=1/C16H14OS/c1-10(2)11-7-5-8-13-15(17)12-6-3-4-9-14(12)18-16(11)13/h3-10H,1-2H3

Upstream product

• 98-82-8 Isopropylbenzene 
• 3950-02-5 2-chlorosulfenylbenzoyl chloride 
• 119-80-2 2,2'-dithiobenzoic acid 
• 98-07-7 Benzotrichlorid 
• 99-62-7 1,3-diisopropylbenzene 
• 4946-14-9 4-mercapto-cumene 

Relevant articles and documents

Preparation process of photoinitiator 2-/4-isopropyl thioxanthone

The invention provides a preparation process of a photoinitiator 2-/4-isopropyl thioxanthone, which comprises the following steps: by taking dithiobenzoic acid as a raw material, and carrying out substitution condensation on an intermediate 2-chloromercaptobenzoyl chloride and isopropyl benzene under an anhydrous condition by taking a boron trifluoride complexing agent as a condensing agent; after condensation, carrying out reduced-pressure solvent removal, water washing treatment and high-vacuum distillation to obtain a 2-/4-isopropyl thioxanthone crude product, and refining the crude product to obtain a 2-/4-isopropyl thioxanthone refined product. The method has the advantages that generation of three wastes is greatly reduced, the production cost is reduced, the sewage treatment pressure is reduced, the production efficiency is improved, and the method is suitable for mass production of products.

Novel thioxanthone compound synthesis method

The invention belongs to the technical field of synthesis and discloses a novel thioxanthone compound synthesis method. The method includes steps: sequentially adding alkali and o-chlorobenzoic acid into a solvent, stirring to enable neutralization reaction, dropwise adding alkyl thiophenol into a reaction system after heat release stops in neutralization reaction, heating to 120-220 DEG C, keeping the temperature, and performing etherification reaction for 8-12h; after etherification reaction is finished, cooling to the room temperature, starting tail gas absorption, keeping the pressure of the reaction system in a range from -0.03 to -0.08Mpa, dropwise adding concentrated sulfuric acid into etherified liquid, performing thermal reaction at 20-60 DEG C for 3-7h, and dropwise adding a dehydrating agent into the reaction system in the reaction process to remove water generated in cyclization reaction; adding water into reaction liquid after reaction, stirring, standing for layering, andsubjecting organic supernatant to solvent removal and recrystallization to obtain a target product namely a thioxanthone compound. The total product yield is high, sulfuric acid solution containing potassium hydrogen sulfate is a byproduct, and easiness in treatment and recovery and environmental friendliness are realized.

Preparation methods of acyl chloride and thioxanthone

The present invention relates to the field of fine chemicals and pharmaceutical chemicals, particularly to new economical preparation process technologies of ortho-chlorosulfenyl aroyl chloride and thioxanthone compounds, and applications of the thioxanthone compounds in synthesis of photoinitiators or other new material chemicals.

Process for the preparation of thioxanthones

Processes are described for the preparation of thioxanthones (Formula I). A reactant mixture of a 2-chlorothiobenzoyl chloride (Formula II) and an aromatic compound (Formula III) is added to a slurry of a Friedel-Crafts catalyst in an organic Friedel-Crafts solvent. Products of the processes may be used for the preparation of a pharmaceutical product for use in the field of psycho-therapeutics, or as activators or sensitizers in the photo-polymerization of ethylenically unsaturated monomers.