1137261-90-5

Basic information

• Product Name: 1-(4-methoxyphenyl)-1,3-heptanedione
• Synonyms: 1-(4-methoxyphenyl)-1,3-heptanedione
• CAS NO: 1137261-90-5
• Molecular Weight: 234.295
• Mol File: 1137261-90-5.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 1-(4-methoxyphenyl)-1,3-heptanedione(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(4-methoxyphenyl)-1,3-heptanedione(1137261-90-5)
• EPA Substance Registry System: 1-(4-methoxyphenyl)-1,3-heptanedione(1137261-90-5)

Safety Data

• Hazardous Substances Data: 1137261-90-5(Hazardous Substances Data)

Upstream product

• 67-56-1 methanol 
• 624-24-8 methyl valerate 
• 100-06-1 1-(4-methoxyphenyl)ethanone 
• 93845-81-9 1-(4-methoxyphenyl)hept-2-yn-1-one 

Downstream Products

• 1951-25-3 Amiodarone 
• 1951-26-4 2-n-butyl-3-(3',5'-diiodo-4'-hydroxybenzoyl)benzofuran 
• 52490-15-0 2-n-Butyl-3-(4-hydroxy-benzoyl)-benzofuran 
• 83790-87-8 2-n-butyl 3-(4-methoxy benzoyl)-benzofuran 
• 141627-42-1 (2-butyl-5-nitrobenzofuran-3-yl)(4-methoxyphenyl)methanone 

Relevant articles and documents

Lewis Acid-Catalyzed Synthesis of Benzofurans and 4,5,6,7-Tetrahydrobenzofurans from Acrolein Dimer and 1,3-Dicarbonyl Compounds

2,3-Disubstituted benzofurans were synthesized from acrolein dimer and 1,3-dicarbonyl compounds by using N-bromosuccinimide as an oxidizing agent. The method was used to synthesize two commercial drug molecules, benzbromarone and amiodarone. The proposed mechanism of the reaction involves a N-bromosuccinimide (NBS)-assisted autotandem catalysis with Lewis acid catalyst. To proof the proposed mechanism, an intermediate was isolated successfully, which can be converted to 4,5,6,7-tetrahydrobenzofurans.

PROCESS FOR PREPARING 2-ALKYL-3-AROYL-5-NITRO-BENZOFURANS

The present invention relates to a process for the preparation of a compound of formula wherein R1 is selected from C1-6-alkyl, C3-6-cycloalkyl and aralkyl, and wherein R2 at each occurrence independently is halogen or C1-6-alkyl, and m is an integer from 0 to 4, Q is selected from halogen, —NO2 and —NR3R4, wherein R3 and R4 are independently selected from hydrogen, C1-6-alkyl, C3-6-cycloalkyl, aryl, aralkyl, mesyl and tosyl, or wherein R3 and R4 together form a C4-6-alkylene group, Y at each occurrence is hydrogen or a hydroxy protection group W that can be hydrolytically cleaved under acidic conditions, and n is an integer from 1 to 3, and n is an integer from 1 to 3, with the proviso that n and m together are not greater than 5.

Process for preparing 2-Alkyl-3-aroyl-5-nitro-benzofurans

The present invention relates to a process for the preparation of a compound of formula wherein R1 is selected from C1-6-alkyl, C3-6-cycloalkyl and aralkyl, and wherein R2 at each occurrence independently is halogen or C1-6-alkyl, and m is an integer from 0 to 4, Q is selected from halogen, -NO2 and -NR3R4, wherein R3 and R4 are independently selected from hydrogen, C1-6-alkyl, C1-6-cycloalkyl, aryl, aralkyl, mesyl and tosyl, or wherein R3 and R4 together form a C4-6-alkylene group, Y at each occurrence is hydrogen or a hydroxy protection group W that can be hydrolytically cleaved under acidic conditions, and n is an integer from 1 to 3, and n is an integer from 1 to 3, with the proviso that n and m together are not greater than 5.