2196-23-8

Basic information

• Product Name: 1,3,5-Heptatriene
• Synonyms: 1,3,5-Heptatriene
• CAS NO: 2196-23-8
• Molecular Formula: C₇H₁₀
• Molecular Weight: 0
• Mol File: 2196-23-8.mol
• Article Data: 1

Chemical Properties

• Melting Point: 23°C
• Boiling Point: 105.68°C (estimate)
• Appearance: /
• Density: 0.7640
• Refractive Index: 1.5079
• CAS DataBase Reference: 1,3,5-Heptatriene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3,5-Heptatriene(2196-23-8)
• EPA Substance Registry System: 1,3,5-Heptatriene(2196-23-8)

Safety Data

• Hazardous Substances Data: 2196-23-8(Hazardous Substances Data)

Usage

Type of hydrocarbon

Alkadiene

Structure

Seven-carbon chain with three double bonds

Reactivity

Highly reactive

Volatility

Highly volatile

Usage

Building block for the synthesis of various organic compounds, including pharmaceuticals, polymers, and other chemicals

Safety precautions

Handled and stored under strict safety precautions to prevent accidental combustion or chemical reactions

Role in organic chemistry

Study and understanding of chemical reactions involving conjugated dienes

Upstream product

• 96998-17-3 (Z)-hepta-1,5-dien-4-ol 
• 2883-45-6 1, 6-heptadien-4-ol 
• 58794-16-4 4-bromo-hepta-1,6-diene 
• 61539-76-2 4-Brom-hepta-1,5-dien 
• 102683-82-9 1,5-hexadienyl bromomethyl sulfone 
• 24581-03-1 hepta-1,5-dien-4-ol 
• 592-42-7 1,5-Hexadien 
• 102683-81-8 2-bromo-5-hexenyl bromomethyl sulfone 
• 5567-51-1 3,4-heptadien-1-ol 
• 58534-80-8 NaCC(n-C₃H₇) 
• 24767-75-7 toluene-4-sulfonic acid hepta-3,4-dienyl ester 

Downstream Products

• 89510-78-1 C₂₃H₂₂O₄ 
• 19656-98-5 5-methyl-1,3-cyclohexadiene 

Relevant articles and documents

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Methyltriphenoxyphosphonium Iodide (MTPI); Induced Dehydration and Dehydrohalogenation in Aprotic Solvents

Methyltriphenoxyphosphonium iodide (MTPI) is an effective dehydration and dehydrohalogenation reagent under mild conditions when 1,3-dimethylimidazolidin-2-one is used as an aprotic solvent in place of the more normally used hexamethylphosphoric triamide (HMPT).Since previosly suggested mechanisms had proposed alcohol-HMPT interaction as an important mechanistic step, this result coupled with comparative product geometric isomer distributions and the conjugated: non-conjugated triene product ratios leads to the conclusion that MTPI-alcohol interaction with displacement of phenoxide is the primary step in the reaction.In dimethyl sulphoxide (DMSO) alcohol dehydratation is hindered by DMSO-MTPI interaction yielding dimethyl sulphide.