897-38-1

Basic information

• Product Name: 1,3-Dihydro-3-oxo-2-isobenzofuranylidenmalonsaeurediethylester
• Synonyms: 1,3-Dihydro-3-oxo-2-isobenzofuranylidenmalonsaeurediethylester
• CAS NO: 897-38-1
• Molecular Weight: 290.273
• Mol File: 897-38-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 1,3-Dihydro-3-oxo-2-isobenzofuranylidenmalonsaeurediethylester(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-Dihydro-3-oxo-2-isobenzofuranylidenmalonsaeurediethylester(897-38-1)
• EPA Substance Registry System: 1,3-Dihydro-3-oxo-2-isobenzofuranylidenmalonsaeurediethylester(897-38-1)

Safety Data

• Hazardous Substances Data: 897-38-1(Hazardous Substances Data)

Upstream product

• 85-44-9 phthalic anhydride 
• 105-53-3 diethyl malonate 
• 85152-94-9 2-(2-Chlorocarbonyl-benzoyl)-3,3-diethoxy-acrylic acid ethyl ester 

Downstream Products

• 4870-16-0 N-anilinophthalimide 
• 70454-43-2 2',2'-diphenyl-1,2-benzene-dicarboxylic acid dihydrazide 
• 577-56-0 2-acetyl-benzoic acid 
• 1707-95-5 bindone 
• 14746-25-9 2-(2,2-bis-ethoxycarbonyl-ethyl)-benzoic acid 
• 88-99-3 benzene-1,2-dicarboxylic acid 
• 85-44-9 phthalic anhydride 
• 105-53-3 diethyl malonate 
• 606-23-5 1H-indene-1,3(2H)-dione 
• 607-26-1 N,N'-ethylenediphthalimide 
• 4743-57-1 phthalidyliden-acetic acid 
• 64-17-5 ethanol 
• 141-82-2 malonic acid 
• 108-13-4 malonodiamide 

Relevant articles and documents

Effect of hydration and structure on the fragmentation of 2,2-(propane-1,3-diyl)bis(isoindoline-1,3-dione) and 2,2-(ethane-1,2-diyl)bis(isoindoline-1,3-dione) in electron impact ionization-mass spectrometry: A theoretical and experimental study

Two bis-phthalimide derivatives, 2,2-(ethane-1,2-diyl)bis(isoindoline-1,3-dione) (3) and 2,2-(propane-1,3-diyl)bis(isoindoline-1,3-dione) (4) were synthesized and characterized by 1H NMR, 13C NMR and electron impact ionization-mass spectrometry (EI-MS). Effect of the alkyl length on the fragmentation of the compounds 3 and 4 was investigated and it was found that molecular ion of 3 with a CH2–CH2 group is almost completely decomposed, so that a small peak was observed for its molecular ion at m/z of 320. On the other hand, an intense peak with m/z of 334 was observed for the molecular ion of 4 indicating the stability of 4+ ion. The results were interpreted using computational method at B3LYP/6-31 + G(d) level of theory. Also, comparison of the mass spectra showed that the cation 4+ is tri-hydrated while 3+ is not hydrated. From the optimized structures of 4+(H2O)1-3 clusters, it was found that the extra stability of 4+(H2O)3 is due to formation of hydronium ion (H2O)2H3O+.