2930-27-0

Basic information

• Product Name: Thiopyrylium, 2,4,6-triphenyl-, chloride
• CAS NO: 2930-27-0
• Molecular Formula: C23H17S.Cl
• Molecular Weight: 360.907
• Mol File: 2930-27-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Thiopyrylium, 2,4,6-triphenyl-, chloride(CAS DataBase Reference)
• NIST Chemistry Reference: Thiopyrylium, 2,4,6-triphenyl-, chloride(2930-27-0)
• EPA Substance Registry System: Thiopyrylium, 2,4,6-triphenyl-, chloride(2930-27-0)

Safety Data

• Hazardous Substances Data: 2930-27-0(Hazardous Substances Data)

Upstream product

• 71709-21-2 2-Methoxy-2,4,6-triphenyl-2H-thiopyran 
• 98-88-4 benzoyl chloride 
• 2930-37-2 2,4,6-triphenylthiopyrylium perchlorate 
• 87691-75-6 2-Dimethylamino-2,4,6-triphenyl-2H-thiopyran 

Downstream Products

• 611-74-5 N,N-dimethylbenzamide 
• 39659-58-0 2,4,6-Triphenyl-thiopyrylium-iodid 
• 87691-76-7 2-Morpholino-2,4,6-triphenyl-2H-thiopyran 
• 87691-75-6 2-Dimethylamino-2,4,6-triphenyl-2H-thiopyran 
• 71709-21-2 2-Methoxy-2,4,6-triphenyl-2H-thiopyran 

Relevant articles and documents

2,4,6-triphenylpyrylium cations as derivatization reagents for sulfide ions detection in TLC

We report a study of the use of 2,4,6-triphenylpyrylium salts as derivatization reagents for the simple detection of sulfide ions in thin-layer chromatography (TLC). The principle of the presented method is based on the transformation of 2,4,6-triphenylpyrylium compounds into the parent thiopyrylium derivatives upon reaction with sulfide ions. The derivatization reaction took place in a tube or directly on the TLC plate before the developing step. As a consequence of the reaction of sulfide with the 2,4,6-triphenylpyrylium derivatives, the spots became visible as yellow or blue spots on a colorless background. Spots were stable for several hours. The detection limit is at pmol per spot level and depends on the triphenylpyrylium salt used and on the detection method. Taylor & Francis Group, LLC.

Pyrylium Compounds. 32. 2-Methoxy-2H-thiopyrans from 2,4,6-Triaryl-thiopyrylium Salts

Reaction of 2,4,6-triarylthiopyrylium salts 1 with sodium methoxide in absolute methanol yields isolable 2-methoxy-2H-thiopyrans 2, the structure of which was proved spectroscopically.Using the 2,4,6-triphenyl derivative 2a as model compound, the behaviour of the 2-methoxy-2H-thiopyran system towards some nucleophiles and electrophiles was studied.Thus, on heating with ethanol the 2-ethoxy-2H-thiopyran 3 is formed.Nitromethane and ethyl cyanoacetate react with 2a in the presence of triethylamine to give 2,4,6-triphenylbenzene (6) and 2,4,6-triphenylbenzonitrile (7), respectively.Electrophiles (e.g. mineral acids or acyl halides) regenerate from 2a the starting thiopyrylium system; the same principle underlies the formation of 2,4,6-triphenyl-thiopyrylium perchlorate (1a) and 2-methoxy-3-methyl-2,4,6-triphenyl-2H-pyran (5) from 2a and 3-methyl-2,4,6-triphenylpyrylium perchlorate (4).