99391-04-5

Basic information

• Product Name: 4-(4-Methoxyphenyl)-6-methyl-2H-pyran-2-thione
• Synonyms: 4-(4-Methoxyphenyl)-6-methyl-2H-pyran-2-thione
• CAS NO: 99391-04-5
• Molecular Weight: 232.303
• Mol File: 99391-04-5.mol

Chemical Properties

• CAS DataBase Reference: 4-(4-Methoxyphenyl)-6-methyl-2H-pyran-2-thione(CAS DataBase Reference)
• NIST Chemistry Reference: 4-(4-Methoxyphenyl)-6-methyl-2H-pyran-2-thione(99391-04-5)
• EPA Substance Registry System: 4-(4-Methoxyphenyl)-6-methyl-2H-pyran-2-thione(99391-04-5)

Safety Data

• Hazardous Substances Data: 99391-04-5(Hazardous Substances Data)

Upstream product

• 67075-01-8 4-(4-methoxy-phenyl)-6-methyl-pyran-2-one 

Downstream Products

• 99390-98-4 1-(4-Chloro-phenyl)-4-(4-methoxy-phenyl)-6-methyl-1H-pyridin-2-one 
• 67075-08-5 1,2-Dihydro-4-(4-methoxyphenyl)-6-methyl-2-pyridinone 
• 99391-05-6 4-(4-Methoxyphenyl)-6-methyl-2H-thiopyran-2-one 
• 99390-99-5 1-Hydroxy-4-(4-methoxy-phenyl)-6-methyl-1H-pyridin-2-one 
• 99391-00-1 1-Amino-4-(4-methoxyphenyl)-6-methyl-2(1H)-pyridinone 
• 99391-02-3 1-(2-Aminoethyl)-4-(4-methoxyphenyl)-6-methyl-2(1H)-pyridinone 
• 99391-03-4 3-(4-Methoxyphenyl)-1-methylpyrido<1,2-a>benzaimidazole 
• 99391-01-2 4-(4-Methoxyphenyl)-6-methyl-1-phenylamino-2(1H)-pyridinone 
• 99390-97-3 1-benzyl-4-(4-methoxyphenyl)-6-methyl-1H-pyridin-2-one 
• 99391-06-7 3-Bromo-4-(4-methoxyphenyl)-6-methyl-2H-thiopyran-2-one 

Relevant articles and documents

Diels-Alder reaction of pyran-2(H)-ones: Part VI - Preparation and investigation of the Diels-Alder reaction of 4,6-disubstituted thiopyran-2(H)-ones with 1,4-naphthoquinone and N-phenylmaleimide

4,6-Disubstituted pyran-2(H)-ones 1 when treated with P2S5 the corresponding pyran-2(H)-thiones 2 are obtained. 2 on boiling in aq. methanol in the presence of Na2CO3 give the corresponding thiopyran-2(H) -ones 3. The mechanism for this reaction has been proposed, which is supported by the AM1 calculation results and the spectral data. The Diels-Alder reactions of 2 and 3 with N-phenylmaleimide and 1,4-naphthoquinone have been studied.

Comparative study of the Diels-Alder reactions of 4,6-bis(4-methoxyphenyl)-2H-pyran-2-one and 4-(4-methoxyphenyl)-6-methyl-2H-pyran-2-one and their thiones with some symmetrical dienophiles

4,6-Bis(4-methoxyphenyl)-2H-pyran-2-one (2) and 4-(4-methoxyphenyl)-6-methyl-2H-pyran-2-one (3) react with 1,4-naphthoquinone to form the corresponding 1,3-disubstituted anthraquinones (8,9).The reaction has been carried out in different solvents as well