40754-58-3

Basic information

• Product Name: 3,6-Dihydro-4,5-dimethyl-2,2-diphenyl-2H-thiopyran
• Synonyms: 3,6-Dihydro-4,5-dimethyl-2,2-diphenyl-2H-thiopyran
• CAS NO: 40754-58-3
• Molecular Weight: 280.434
• Mol File: 40754-58-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 3,6-Dihydro-4,5-dimethyl-2,2-diphenyl-2H-thiopyran(CAS DataBase Reference)
• NIST Chemistry Reference: 3,6-Dihydro-4,5-dimethyl-2,2-diphenyl-2H-thiopyran(40754-58-3)
• EPA Substance Registry System: 3,6-Dihydro-4,5-dimethyl-2,2-diphenyl-2H-thiopyran(40754-58-3)

Safety Data

• Hazardous Substances Data: 40754-58-3(Hazardous Substances Data)

Upstream product

• 119-61-9 benzophenone 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 90-99-3 diphenylchloromethane 
• 1450-31-3 Thiobenzophenon 

Downstream Products

• 632-15-5 3,4-dimethylthiophene 
• 563-79-1 2,3-Dimethyl-2-butene 
• 101-81-5 Diphenylmethane 
• 76390-41-5 3,4-Dimethyl-2-(diphenylmethyl)thiophen 
• 28562-37-0 cyclopropane, 1,1-diphenyl-2-methyl-2-<2-(methylthio)-1-(methyl)ethenyl>- 
• 27067-38-5 rac-1-Methyl-1-acetyl-2,2-diphenyl-cyclopropan 

Relevant articles and documents

Thia-Diels–Alder reactions of hetaryl thioketones with nonactivated 1,3-dienes leading to 3,6-dihydro-2H-pyrans: evidence for a diradical mechanism

[Figure not available: see fulltext.] Dihetaryl thioketones possessing thiophen-2-yl and selenophen-2-yl rings react as “superdienophilic” reagents with nonactivated 1,3-dienes such as 2,3-dimethylbuta-1,3-diene, cyclopentadiene, and mixtures of isomeric

Preparation and Cycloaddition Chemistry of Thio- and Selenocarbonyls Derived from Reaction of Elemental Sulfur and Selenium with Stabilized α-Halo Anions

Reaction of diethyl chloromalonate with Cs2CO3 in the presence of elemental S8 or Sen generates the corresponding diethyl thioxo- or selenoxomalonates which are subsequently trapped in situ with various 1,3-dienes.Similarly, the chalcogen carbonyls can be prepared from other halogenated compounds using DBU as the base and effectively trapped in Diels-Alder fashion with 2,3-dimethyl-1,3-butadiene (Table 2).