4313-02-4

Basic information

• Product Name: 2,4-heptadienal,(E,Z)-2,4-heptadienal
• Synonyms: 2,4-heptadienal,(E,Z)-2,4-heptadienal
• CAS NO: 4313-02-4
• Molecular Formula: C₇H₁₀O
• Molecular Weight: 110.1537
• Mol File: 4313-02-4.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 129.2 °C at 760 mmHg
• Flash Point: 28.8 °C
• Appearance: /
• Density: 0.824 g/cm³
• Vapor Pressure: 10.3mmHg at 25°C
• Refractive Index: 1.432
• CAS DataBase Reference: 2,4-heptadienal,(E,Z)-2,4-heptadienal(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-heptadienal,(E,Z)-2,4-heptadienal(4313-02-4)
• EPA Substance Registry System: 2,4-heptadienal,(E,Z)-2,4-heptadienal(4313-02-4)

Safety Data

• Hazardous Substances Data: 4313-02-4(Hazardous Substances Data)

Usage

General Description

2,4-heptadienal is a chemical compound that exists in two stereoisomeric forms: (E)-2,4-heptadienal and (Z)-2,4-heptadienal. Both isomers are aldehydes with a molecular formula of C7H10O, and they are used in the production of flavor and fragrance compounds. These chemicals are commonly found in natural sources such as fruits and vegetables, and they contribute to the overall aroma and taste of these products. The (E)-2,4-heptadienal isomer has a specific odor profile that includes a fruity, floral, and green leafy note, while the (Z)-2,4-heptadienal isomer has a more pungent and grassy odor. Both isomers are important in the food and fragrance industry for their aromatic properties.

InChI:InChI=1/C7H10O/c1-2-3-4-5-6-7-8/h4-6H,2-3H2,1H3/b5-4+

Upstream product

• 1576-95-0 cis-2-penten-1-ol 
• 1099-45-2 ethyl (triphenylphosphoranylidene)acetate 
• 6107-37-5 ethylzinc bromide 
• 131947-32-5 (2E,4E)-1-Iodo-hepta-2,4-diene 
• 70979-88-3 (2E,4Z)-hepta-2,4-dien-1-ol 

Downstream Products

• 33580-05-1 1,3-trans,5-cis-octatriene 

Relevant articles and documents

Straightforward preparation of (2E,4Z)-2,4-heptadien-1-ol and (2E,4Z)-2,4-heptadienal

A concise synthesis of (2E,4Z)-2,4-heptadien-1-ol and (2E,4Z)-2,4-heptadienal is presented. Commercially available (Z)-2-penten-1-ol was converted to ethyl-(2E,4Z)-2,4-heptadienoate by reaction with activated MnO2 and (carboethoxymethylene)triphenylphosphorane in the presence of benzoic acid as a catalyst. Ethyl-(2E,4Z)-2,4-hep-tadienoate was converted to (2E,4Z)-2,4-heptadien-1-ol with LiAlH4. The alcohol was partially oxidized to (2E,4Z)-2,4-heptadienal with MnO2. The title compounds are male-specific, antennally active volatile compounds from the Saltcedar leaf beetle, Diorhabda elongata Brulle (Coleoptera: Chrysomelidae) and have potential use in the biological control of the invasive weed saltcedar (Tamarix spp).

(2E)-4,4-dimethoxy-2-butenal in the synthesis of conjugated dienes and dienals

Using (2E)-4,4-dimethoxy-2-butenal as starting compound, methods were developed for synthesis of (2E,4E)-and (2E,4Z)-dimethoxyalkadienes. Deacetalization of the latter gives with high yield the corresponding dienals which are naturally occurring compounds

HIGHLY STEREOCONTOROLLED SYNTHESIS OF (2E,4Z)-DIENIC ESTERS BY ALUMINA CATALYST

Thermal treatment of β-allenic esters (2) with alumina catalyst in aprotic solvents yielded (2E,4Z)-dienoic esters (3) in 57-87percent yields with 91-100percent stereoselectivity.