57242-69-0

Basic information

• Product Name: 2,3-dihydro-4H-thiopyran-4-one
• Synonyms: 2,3-dihydro-4H-thiopyran-4-one
• CAS NO: 57242-69-0
• Molecular Weight: 114.168
• Mol File: 57242-69-0.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 2,3-dihydro-4H-thiopyran-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-dihydro-4H-thiopyran-4-one(57242-69-0)
• EPA Substance Registry System: 2,3-dihydro-4H-thiopyran-4-one(57242-69-0)

Safety Data

• Hazardous Substances Data: 57242-69-0(Hazardous Substances Data)

Upstream product

• 17396-36-0 tetrahydro-4H-thiopyran-4-one 1-oxide 
• 941-69-5 N-phenyl-maleimide 
• 89241-43-0 Trimethyl-(2H-thiopyran-4-yloxy)-silane 
• 127878-20-0 4-tert-butyldimethylsilyloxy-2H-thiopyran 

Downstream Products

• 76625-84-8 2-phenylthian-3-one 
• 58977-36-9 ethyl 3-phenylpropyl ketone 
• 60012-62-6 phenyl-1 hexanol-2 
• 90996-82-0 2-benzyl-5,6-dihydrothiin-4-ol 
• 90996-81-9 2-benzyl-5,6-dihydrothiin-4-one 
• 90996-73-9 2-phenylthio-4,4-ethylenedioxythiane 
• 90996-76-2 7-Methyl-7-phenylsulfanyl-1,4-dioxa-8-thia-spiro[4.5]decane 
• 90996-83-1 2-benzyl-5,6-dihydrothiin-4-one 1,1-dioxide 
• 90996-75-1 7-Isobutyl-7-phenylsulfanyl-1,4-dioxa-8-thia-spiro[4.5]decane 
• 90996-78-4 7-Allyl-7-phenylsulfanyl-1,4-dioxa-8-thia-spiro[4.5]decane 
• 90996-84-2 2-benzyl-4,4-ethylenedioxy-5,6-dihydrothiin 
• 90996-74-0 7-Butyl-7-phenylsulfanyl-1,4-dioxa-8-thia-spiro[4.5]decane 
• 90996-77-3 2-benzyl-2-phenylthio-4,4-ethylenedioxythiane 
• 1003602-30-9 (Z)-3-(2,4,6-trimethoxybenzylidene)-2,3-dihydrothiopyran-4-one 

Relevant articles and documents

Diels-Alder reactions of activated 2H-thiopyrans

The Diels-Alder reactivity of various 2H-thiopyrans bearing electron-donating substituents has been investigated.The approximate order of the reactivity among the 2H-thiopyrans studied was 4,6-disubstituted >> 5-substituted > 4-substituted, 3,5-disubstituted >> 3-substituted.Good yields of predominantly endo adducts are obtained with reactive dienophiles.With less reactive dienophiles, reactions are much slower and yields are attenuated due to the competing thermal decomposition of the dienes under the reaction conditions.The adducts obtained are equivalent (via desulfurization) to those from unreactive cis-substituted dienes. Key words: Diels-Alder, 2H-thiopyran.