4125-23-9

Basic information

• Product Name: 2-methyleneheptan-1-al
• Synonyms: 2-methyleneheptan-1-al;2-Methyleneheptanal
• CAS NO: 4125-23-9
• Molecular Formula: C₈H₁₄O
• Molecular Weight: 126.19616
• EINECS: 223-933-7
• Mol File: 4125-23-9.mol
• Article Data: 11

Chemical Properties

• Boiling Point: 179.9 °C at 760 mmHg
• Flash Point: 57.3 °C
• Appearance: /
• Density: 0.825g/cm³
• Vapor Pressure: 0.922mmHg at 25°C
• Refractive Index: 1.422
• CAS DataBase Reference: 2-methyleneheptan-1-al(CAS DataBase Reference)
• NIST Chemistry Reference: 2-methyleneheptan-1-al(4125-23-9)
• EPA Substance Registry System: 2-methyleneheptan-1-al(4125-23-9)

Safety Data

• Hazardous Substances Data: 4125-23-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C8H14O/c1-3-4-5-6-8(2)7-9/h7H,2-6H2,1H3

Upstream product

• 628-71-7 1-Heptyne 
• 201230-82-2 carbon monoxide 
• 111-71-7 heptanal 
• 111-92-2 dibutylamine 
• 64-18-6 formic acid 
• 137518-42-4 1-Trimethylsiloxy-2-pentyl-cyclopropan 
• 51-80-9 bis-(dimethylamino)methane 
• 17510-50-8 1-trimethylsilanyloxy-hept-1-ene 
• 855598-36-6 4-pentyl-dihydro-furan-2,3-dione 
• 14869-29-5 1-ethoxy-2-ethoxymethyl-heptan-2-ol 
• 50-00-0 formaldehyd 

Downstream Products

• 1239600-18-0 (R)-3-((2R,3R)-3-hydroxy-2-methyl-4-methylenenonanoyl)-4-isopropyloxazolidin-2-one 
• 1239600-18-0 (S)-3-[(2S,3S)-3-hydroxy-2-methyl-4-methylideneonanoyl]-4-isopropyl-2-oxazolidinone 
• 1353899-86-1 3-benzyltetrahydro-3-nitro-5-pentyl-2H-pyran 
• 1316098-67-5 methyl 2-((benzyloxycarbonylamino)methyl)heptanoate 
• 1266373-40-3 benzyl (S)-2-formyl-2-pentylaziridine-1-carboxylate 
• 1266373-48-1 (S)-2-pentyl-1-tosylaziridine-2-carbaldehyde 
• 91228-22-7 (2-Methoxy-4-pentyl-cyclohex-3-enesulfonyl)-benzene 

Relevant articles and documents

ODORANTS AND COMPOSITIONS COMPRISING ODORANTS

The present invention relates to new classes of odorous 3-(2- methylenealkoxy)alkanenitrile derivatives of formula (I) which are useful as fragrance or flavor materials in particular in providing dry, woody, dusty, earthy, and/or patchouli notes together with optional coriander, aldehydic, citrus, mandarin, pear, cinnamon, and/ or petal floral-like notes to perfume, aroma or deodorizing/masking compositions.

Lewis Acid Catalyzed Formal Intramolecular [3 + 3] Cross-Cycloaddition of Cyclopropane 1,1-Diesters for Construction of Benzobicyclo[2.2.2]octane Skeletons

A novel Lewis acid catalyzed formal intramolecular [3 + 3] cross-cycloaddition (IMCC) of cyclopropane 1,1-diesters has been successfully developed. This supplies an efficient and conceptually new strategy for construction of bridged bicyclo[2.2.2]octane skeletons. This [3 + 3]IMCC could be run up to gram scale and from easily prepared starting materials. This [3 + 3]IMCC, together with our previously reported [3 + 2]IMCC strategy, can afford either the bicyclo[2.2.2]octane or bicyclo[3.2.1]octane skeletons from the similar starting materials by regulating the substituents on vinyl group.

REGENERATION OF A HYDROFORMYLATION CATALYST DURING HYDROFORMYLATION

A method for hydroformylating or hydrocarbonylating a substrate having a carbon-carbon double or triple bond or both is described. The method comprises exposing the substrate to a hydroformylation catalyst under an atmosphere comprising carbon monoxide and hydrogen in the presence of a regeneration reagent so as to form a product. The regeneration reagent is such that it is capable of at least partially reversing poisoning of the hydroformylation catalyst by a diene or an alkyne or both.