38731-83-8

Basic information

• Product Name: 1,3-dimethyl-9H-xanthene
• Synonyms: 1,3-dimethyl-9H-xanthene
• CAS NO: 38731-83-8
• Molecular Formula: C₁₅H₁₄O
• Molecular Weight: 210.27106
• EINECS: 254-107-4
• Mol File: 38731-83-8.mol

Chemical Properties

• Boiling Point: 350°Cat760mmHg
• Flash Point: 162.4°C
• Appearance: /
• Density: 1.108g/cm³
• Vapor Pressure: 9.16E-05mmHg at 25°C
• Refractive Index: 1.601
• CAS DataBase Reference: 1,3-dimethyl-9H-xanthene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-dimethyl-9H-xanthene(38731-83-8)
• EPA Substance Registry System: 1,3-dimethyl-9H-xanthene(38731-83-8)

Safety Data

• Hazardous Substances Data: 38731-83-8(Hazardous Substances Data)

Usage

Chemical structure

Xanthene core with two methyl groups at the 1 and 3 positions

Usage

Building block in the synthesis of fluorescent dyes and pigments

Investigation

Potential use in photodynamic therapy for cancer treatment

Research focus

Photochemical and photophysical properties

Field of interest

Photochemistry and materials science

Industry relevance

Valuable compound in the chemical industry

Scientific research

Important for research in photochemistry and materials science

Aromatic structure

Contributes to its stability and potential applications

Derivatives

Xanthenone derivatives are being studied for various applications

InChI:InChI=1/C15H14O/c1-10-7-11(2)13-9-12-5-3-4-6-14(12)16-15(13)8-10/h3-8H,9H2,1-2H3

Upstream product

• 1123-09-7 3,5-dimethyl-2-cyclohexen-1-one 
• 90-02-8 salicylaldehyde 
• 446-52-6 2-Fluorobenzaldehyde 
• 108-68-9 3,5-Dimethylphenol 
• 320423-51-6 2-(3,5-dimethylphenoxy)benzaldehyde 
• 103394-87-2 1,3-dimethyl-xanthen-9-ol 
• 80-17-1 benzenesufonyl hydrazide 

Relevant articles and documents

Lewis acid-catalysed one pot synthesis of substituted xanthenes

A direct synthesis of substituted xanthenes from salicylaldehydes and cyclohexenones or tetralones has been developed. The reaction is catalysed by Lewis acids like scandium triflate and furnishes substituted xanthenes in good to excellent yields using either microwave or thermal heating. Microwave heating results in significantly shortened reaction times of 30 min and generally higher yields.

Lewis Acid Catalyzed Reductive Cyclization of 2-Aryloxybenzaldehydes and 2-(Arylthio)benzaldehydes to Unsubstituted 9H-Xanthenes and Thioxanthenes in Diisopropyl Ether

Readily accessible 2-aryloxybenzaldehydes and 2-(arylthio)benzaldehydes undergo a sequence of reactions leading to a wide variety of unsubstituted 9H-xanthenes and thioxanthenes in high yields when heated with a Lewis acid in diisopropyl ether. This reductive cyclization method is compatible with several important functional groups. The method is also applicable for the selective reductive cyclization of the more electron-rich aryl ring of a 2,6-bis(aryloxy)benzaldehyde. The key feature of this transformation is the chemoselective reduction of a transient xanthylium ion in the presence of aldehydic group via intermolecular hydride transfer from diisopropyl ether (solvent). (Figure presented.).