134940-29-7

Basic information

• Product Name: 3-methyl-3H-benzofuran-2-one
• Synonyms: 3-methyl-3H-benzofuran-2-one
• CAS NO: 134940-29-7
• Molecular Weight: 148.161
• Mol File: 134940-29-7.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 3-methyl-3H-benzofuran-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-methyl-3H-benzofuran-2-one(134940-29-7)
• EPA Substance Registry System: 3-methyl-3H-benzofuran-2-one(134940-29-7)

Safety Data

• Hazardous Substances Data: 134940-29-7(Hazardous Substances Data)

Upstream product

• 21535-97-7 3-methyl-benzofuran 
• 123-31-9 hydroquinone 
• 15243-33-1 dodecacarbonyl-triangulo-triruthenium 
• 1396690-25-7 2-vinylphenyl formate 
• 695-84-1 2-allylphenol 
• 90-02-8 salicylaldehyde 
• 201230-82-2 carbon monoxide 

Downstream Products

• 1374605-40-9 C₂₃H₂₀O₆S₂ 
• 1531624-03-9 3-methylbenzofuran-2-yl 3-(4-nitrophenyl)propanoate 
• 1531624-27-7 (R)-4-nitrobenzyl 3-methyl-2-oxo-2,3-dihydrobenzofuran-3-carboxylate 
• 1531624-02-8 benzyl 3-methylbenzofuran-2-yl carbonate 
• 1531624-26-6 (R)-benzyl 3-methyl-2-oxo-2,3-dihydrobenzofuran-3-carboxylate 
• 1352953-48-0 C₁₇H₁₄ClNO₄ 

Relevant articles and documents

A novel biotransformation of benzofurans and related compounds catalysed by a chloroperoxidase

The oxidation of 3-alkyl benzofurans, indoles, and a benzothiophene by the chloroperoxidase from Caldariomyces fumago has been investigated. Under conditions in which the catalase activity of chloroperoxidase was minimised in the presence of chloride and hydrogen peroxide, 3-methylbenzothiophene was oxidised at sulfur but the indoles (5-9) and benzofurans (1-4) gave 2,3-diols as initial products. In the case of N-unsubstituted indoles, these tautomerised to give the corresponding lactam. In contrast, the diols (predominantly trans) formed from the benzofurans were sufficiently stable for isolation and full characterisation. This novel reaction has the potential to be developed into a useful synthetic biotransformation.

Imidazole derivatives as accelerators for ruthenium-catalyzed hydroesterification and hydrocarbamoylation of alkenes: Extensive ligand screening and mechanistic study

Imidazole derivatives are effective ligands for promoting the [Ru3(CO)12]-catalyzed hydroesterification of alkenes using formates. Extensive ligand screening was performed to identify 2-hydroxymethylated imidazole as the optimal ligand. Neither carbon monoxide gas nor a directing group was required, and the reaction also showed a wide substrate generality. The Ru-imidazole catalyst system also promoted intramolecular hydrocarbamoylation to afford lactams. A Ru-imidazole complex was unambiguously analyzed by X-ray crystallography, and it had a trinuclear structure derived from one [Ru3(CO)12] and two ligands. This complex was also successfully used for hydroesterification. The mechanism was examined in detail by using D- and 13C-labeled formates, indicating that the hydroesterification reaction proceeds by a decarbonylation-recarbonylation pathway. Effective imidazole assistant: [Ru3(CO)12]-catalyzed hydroesterification of alkenes by using formates is drastically accelerated by imidazole derivatives and exhibits a broad substrate scope for both alkenes and formates. The Ru-imidazole complex also catalyzes the intramolecular hydrocarbamoylation of alkenes.

Recyclable selective palladium-catalyzed synthesis of five-, six- or seven-membered ring lactones and lactams by cyclocarbonylation in ionic liquids

The ionic liquids, BMIM PF6 or BMIM NTf2, are used successfully for the palladium-catalyzed cyclocarbonylation of 2-allylphenols and anilines, 2-vinylphenols, and 2-aminostyrenes. The reaction proceeds cleanly and efficiently to afford high yields of lactones or lactams with good or excellent selectivity for one isomer. The ionic liquid containing the palladium catalyst, and ligand, is recyclable in all cases.