71624-92-5

Basic information

• Product Name: Methyl 2,5-Dihydro-5-methyl-2-thiophenecarboxylate
• Synonyms: Methyl 2,5-Dihydro-5-methyl-2-thiophenecarboxylate
• CAS NO: 71624-92-5
• Molecular Weight: 158.221
• Mol File: 71624-92-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Methyl 2,5-Dihydro-5-methyl-2-thiophenecarboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: Methyl 2,5-Dihydro-5-methyl-2-thiophenecarboxylate(71624-92-5)
• EPA Substance Registry System: Methyl 2,5-Dihydro-5-methyl-2-thiophenecarboxylate(71624-92-5)

Safety Data

• Hazardous Substances Data: 71624-92-5(Hazardous Substances Data)

Upstream product

• 1918-79-2 2-methylthiophene-5-carboxylic acid 

Downstream Products

• 928-97-2 (E)-3-hexen-1-ol 
• 928-96-1 (Z)-3-Hexen-1-ol 

Relevant articles and documents

Lithium/Ammonia Reductions of 2-Thiophenecarboxylic Acids

Lithium/ammonia reductions of 2-thiophenecarboxylic acids (1) in the absence of a proton source afforded mixtures of products.In the presence of methanol acyclic mercapto carboxylic acids (4) were the major products.Ring closure of 4 to the corresponding thiolactones (12) showed the double bonds in 4 to be of cis geometry.Attempts were made to prepare Z olefinic compounds derived from these mercapto carboxylic acids.Lithium 2-thiophenecarboxylate salts (2) afforded good yields of the corresponding 2,5-dihydro-2-thiophenecarboxylic acids (3).The presence of substituents on the ring and the ratio of metal to acid were significant factors in determining the nature of this products.A mechanism is proposed to explain the products observed.