2028-11-7

Basic information

• Product Name: 5-methyl-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione
• Synonyms: 1H-isoindole-1,3(2H)-dione, 3a,4,7,7a-tetrahydro-5-methyl-
• CAS NO: 2028-11-7
• Molecular Formula: C₉H₁₁NO₂
• Molecular Weight: 165.1891
• Mol File: 2028-11-7.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 337.4°C at 760 mmHg
• Flash Point: 157.7°C
• Density: 1.171g/cm³
• Vapor Pressure: 0.000105mmHg at 25°C
• Refractive Index: 1.519
• CAS DataBase Reference: 5-methyl-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 5-methyl-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione(2028-11-7)
• EPA Substance Registry System: 5-methyl-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione(2028-11-7)

Safety Data

• Hazardous Substances Data: 2028-11-7(Hazardous Substances Data)

Upstream product

• 3425-89-6 4-methyl-1,2,3,6-tetrahydrophthalic anhydride 
• 1694-82-2 cis-3a,4,7,7a-tetrahydro-5-methyl-1,3-isobenzofurandione 

Relevant articles and documents

A facile and convenient synthesis of 1H-isoindole-1,3(2H)-diones

A facile synthesis of 1H-isoindole-1,3(2H)-diones (3a-h) has been developed by the reaction of the corresponding anhydrides (1a-h) with potassium cyanate (4a) or sodium thiocyanate (4b). The reactions were carried out in neutral media under reflux or under microwave irradiation without use of catalyst. Good to excellent yields of the products were obtained in high purity with very simple work-up.{A figure is presented}.

Metal Carbonyl Complexes with Anions of Cyclic Imides

A large series of metal carbonyl complexes with N-bonded anions of various cyclic imidates (X(-)) has been prepared: (-), (-), (-) (M = Cr, Mo, W), Re(CO)5X, (-), (-).Also pyromellitdiimidate and cyclopentanebis(dicarboximidate) bridged complexes (2-) (M = Cr, Mo, W) and the dicyanamide complex (-) have been obtained.Reactions at the coordinated imidate ligands and the spectroscopic data of the complexes are reported. - Keywords: Chromium, Molybdenum, Tungsten, Manganese Carbonyls, Anions of Cyclic Imides as Ligands