2177-45-9

Basic information

• Product Name: 1,1,3-TRIMETHYLINDENE
• Synonyms: 1,3,3-TRIMETHYLINDENE;1,1,3-TRIMETHYLINDENE;1,1,3-Trimethyl-1H-indene
• CAS NO: 2177-45-9
• Molecular Formula: C₁₂H₁₄
• Molecular Weight: 158.24
• Mol File: 2177-45-9.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 120-124 °C(Press: 0.1 Torr)
• Appearance: /
• Density: 0.940±0.06 g/cm3(Predicted)
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• CAS DataBase Reference: 1,1,3-TRIMETHYLINDENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,3-TRIMETHYLINDENE(2177-45-9)
• EPA Substance Registry System: 1,1,3-TRIMETHYLINDENE(2177-45-9)

Safety Data

• Hazardous Substances Data: 2177-45-9(Hazardous Substances Data)

Usage

General Description

1,1,3-Trimethylindene is a chemical compound with the molecular formula C12H14. It is a colorless liquid with a molecular weight of 158.24 g/mol. 1,1,3-TRIMETHYLINDENE is a type of aromatic hydrocarbon, specifically a substituted indene. It is commonly used as a raw material in the production of polymers and resins, as well as in the manufacturing of fragrances and flavorings. 1,1,3-Trimethylindene is also utilized in the synthesis of pharmaceuticals and agrochemicals. It is considered to be a flammable substance and should be handled and stored with caution.

Upstream product

• 67-71-0 dimethylsulfone 
• 767-59-9 1-Methylinden 
• 79-46-9 2-nitropropane 
• 71-43-2 benzene 

Downstream Products

• 91496-72-9 2-(2-acetylphenyl)-2,2-dimethylacetic acid 
• 105069-46-3 3,3-Dimethyl-3',3'-diphenyl-1,1'-spirobiindan 

Relevant articles and documents

Photoinduced Skeletal Rearrangement of Alkylindenes

The indene phototransposition reaction, a skeletal rearrangement of certain alkylindenes involving an interchange of carbons 1 and 1 (eq 2), is described.The postulated mechnism (Scheme II) involves a closure followed by a sigmatropic shift, opening to an isoindene and 1,5 hydrogen shifts to re-form the indene system.Results of experiments with indenes containing different alkyl groups at C1 and C2 and with 1,1-dimethylindene lend support to the proposed scheme.Experiments with (+)-1,2-dimethylindene indicate that the net migration of C1 to C3,necessary for transposition, occurs with clean inversion at C1 (as would be expected for a ground-state, four-electron, electrocyclic reaction).The reaction derives from the excited singlet state, and partial movement along the initial reaction surface appears to provide an efficient path for S1 radiationless decay.