129441-80-1

Basic information

• Product Name: Benzamide, N-(4-oxo-2-cyclopenten-1-yl)-
• CAS NO: 129441-80-1
• Molecular Formula: C12H11NO2
• Molecular Weight: 201.225
• Mol File: 129441-80-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Benzamide, N-(4-oxo-2-cyclopenten-1-yl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzamide, N-(4-oxo-2-cyclopenten-1-yl)-(129441-80-1)
• EPA Substance Registry System: Benzamide, N-(4-oxo-2-cyclopenten-1-yl)-(129441-80-1)

Safety Data

• Hazardous Substances Data: 129441-80-1(Hazardous Substances Data)

Upstream product

• 59438-62-9 3-oxa-2-aza-bicyclo[2.2.1]hept-5-en-2-yl(phenyl)methanone 
• 59438-62-9 3-benzoyl-2-oxa-3-azabicyclo<2.2.1>hept-5-ene 

Downstream Products

• 657397-07-4 N-(5-iso-butylidene-4-oxocyclopent-2-enyl)-benzamide 
• 129441-82-3 N-[(1S,2S,3S)-2-(Methoxy-phenylsulfanyl-methyl)-3-methyl-4-oxo-cyclopentyl]-benzamide 
• 129743-74-4 (2S,3R,4S)-4-Benzoylamino-2-methyl-6-oxo-tetrahydro-pyran-3-carboxylic acid methyl ester 
• 129743-73-3 (1R,2R,5R)-5-Benzoylamino-2-methyl-3-oxo-cyclopentanecarboxylic acid methyl ester 
• 129441-81-2 N-[(1R,2R,3R)-2-(Methoxy-phenylsulfanyl-trimethylsilanyl-methyl)-3-methyl-4-oxo-cyclopentyl]-benzamide 

Relevant articles and documents

Intra- and intermolecular hydrogen bonding effects in cycloadditions between nitrile oxides and 4-benzoylamino-2-cyclopenten-1-ol and its derivatives

Cycloadditions between nitrile oxides and cis-4-benzoylamino-2-cyclopenten-1-ol offer an example in which a strong intramolecular hydrogen bond completely offsets the syn-directing ability of the cyclopentene substituents. Solvents affected the conformational equilibrium of the cyclopentene dipolarophile but did not sizeably influence the cycloaddition selectivity, showing the absence of directing effects between the addends. Removal of the intramolecular hydrogen bond by OH protection or oxidation activated the syn-directing ability of the amido substituent and provided a convenient route to syn stereoselection. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.