2177-45-9

Usage

Uses

Used in Polymer and Resin Production:
1,1,3-Trimethylindene is used as a raw material for the production of polymers and resins, contributing to the development of various plastic materials and coatings.
Used in Fragrance and Flavoring Industry:
1,1,3-Trimethylindene is used as a component in the manufacturing of fragrances and flavorings, adding unique scents and tastes to different products.
Used in Pharmaceutical Synthesis:
1,1,3-Trimethylindene is utilized as an intermediate in the synthesis of pharmaceuticals, playing a crucial role in the development of new drugs and medications.
Used in Agrochemical Production:
1,1,3-Trimethylindene is also used in the production of agrochemicals, such as pesticides and herbicides, to improve agricultural productivity and crop protection.
Safety Note:
Due to its flammable nature, 1,1,3-Trimethylindene should be handled and stored with caution to prevent accidents and ensure safe usage in various applications.

Upstream product

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

Downstream Products

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

Relevant academic research and scientific papers

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.

NITRO COMPOUNDS AS ALKYLATING REAGENTS IN FRIEDEL-CRAFTS CONDITIONS REACTION OF 2-NITROPROPANE WITH BENZENE

Friedel-Crafts reaction of benzylic or tertiary nitro compounds with benzene gave normal alkylation products.Similarly, 2-nitropropane (2-NP) gave cumene (1) which underwent further transformation affording a mixture whose behaviour with time was investigated: results were consistent with oxidative formation of the cumyl carbonium ion (7').