19353-21-0

Basic information

• Product Name: 3,4-dimethylvaleraldehyde
• Synonyms: 3,4-dimethylvaleraldehyde;3,4-Dimethylpentanal;Einecs 242-983-0
• CAS NO: 19353-21-0
• Molecular Formula: C₇H₁₄O
• Molecular Weight: 114.18546
• EINECS: 242-983-0
• Mol File: 19353-21-0.mol

Chemical Properties

• Boiling Point: 134.5°Cat760mmHg
• Flash Point: 33.4°C
• Appearance: /
• Density: 0.803g/cm³
• Vapor Pressure: 8.08mmHg at 25°C
• Refractive Index: 1.401
• CAS DataBase Reference: 3,4-dimethylvaleraldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-dimethylvaleraldehyde(19353-21-0)
• EPA Substance Registry System: 3,4-dimethylvaleraldehyde(19353-21-0)

Safety Data

• Hazardous Substances Data: 19353-21-0(Hazardous Substances Data)

Usage

Uses

Used in Food and Beverage Industry:
3,4-Dimethylvaleraldehyde is used as a flavoring agent for its fruity odor, enhancing the taste and aroma of various food and beverage products.
Used in Perfume and Cosmetic Industry:
3,4-Dimethylvaleraldehyde is used as a fragrance ingredient in perfumes and cosmetics, providing a pleasant and fruity scent.
Used in Flavor and Fragrance Industry:
3,4-Dimethylvaleraldehyde is used as a key component in the creation of artificial fruit flavors and fragrances, contributing to the overall sensory experience of consumer products.

InChI:InChI=1/C7H14O/c1-6(2)7(3)4-5-8/h5-7H,4H2,1-3H3

Upstream product

• 563-79-1 2,3-Dimethyl-2-butene 
• 563-78-0 2,3-Dimethyl-1-butene 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 93303-76-5 (2S,3R,4S,5R)-3,4-Dimethyl-5-phenyl-2-((E)-propenyl)-oxazolidine 
• 201230-82-2 carbon monoxide 
• 6570-87-2 3,4-dimethyl-pentan-1-ol 
• 76019-23-3 (E)-3,4-dimethylpent-2-en-1-ol 
• 19353-19-6 2-Hydroxy-5-methyl-4-methylene-hex-5-enoic acid 
• 57398-52-4 3,4-dimethylpent-2-enal 
• 563-80-4 3-methyl-butan-2-one 
• 60-29-7 diethyl ether 
• 142321-66-2 1,1-dimethoxy-3,4-dimethylpentane 
• 141380-48-5 2-O-acetylpolyporusterone 
• 123-73-9 trans-Crotonaldehyde 

Downstream Products

• 99914-84-8 2-(1,2-Dimethylpropyl)-5,6-dimethylheptanal 
• 3302-06-5 3,4-Dimethylpentanoic acid 

Relevant articles and documents

Vapor Pressures, Liquid Densities, Liquid Heat Capacities, and Ideal Gas Thermodynamic Properties for 3-Methylhexanal and 3,4-Dimethylpentanal

Vapor pressures, liquid densities, and liquid heat capacities were measured for 3-methylhexanal and 3,4-dimethylpentanal which are two of several C7 aldehyde reaction products that can be obtained from the hydroformylation of hexenes using cobalt or rhodium homogeneous catalyst precursors.The vapor pressure data were fitted to the Miller and Antoine equations and also compared to predictions obtained form the Riedel-Plank-Miller equation.Values for the critical temperature and critical pressure were derived by group contribution methods and compared to independent values obtained by fitting the vapor pressure data to the Riedel-Plank-Miller equation and two corresponding-states-based equations.The liquid density data were compared to predictions obtained from the Yen-Woods equation and were also fitted to an empirical equation.Predictions from the Sternling-Brown, Yuan and Stiel, and the Rowlinson corresponding-state correlations were in good agreement with the liquid heat capacity data, although an empirical polynomial equation was also tested and had a lower mean deviation.Ideal gas thermodynamic properties were also derived and were used to calculate some of the predicted quantities.

Phosphine ligand, preparation method and application thereof

The invention provides a preparation method of a phosphine ligand and application of the phosphine ligand in catalyzing olefin hydroformylation reaction. A structural formula of the phosphine ligand is shown as the specification, wherein R, R1, R2 and R3 are selected from C1-C40 alkyl, alkenyl, alkynyl, and phenyl, substituted phenyl, naphthyl, anthryl, phenanthryl or other aromatic ring and aromatic heterocyclic substituents with higher carbon number. The preparation method of the phosphine ligand comprises the following step: carrying out one-step reaction on an isochroman salt and trisilylphosphine under the promotion of villiaumite. The phosphine ligand has strong stability and coordination ability, and can be well coordinated with cobalt, rhodium and other metals, the obtained complex can be used for hydroformylation reaction of terminal olefin, internal olefin, trisubstituted olefin and tetrasubstituted olefin, the catalyst dosage is small, the reaction conditions are mild, andthe yield and selectivity of aldehyde products are very high.

Dual Rh?Ru Catalysts for Reductive Hydroformylation of Olefins to Alcohols

An active and selective dual catalytic system to promote domino hydroformylation–reduction reactions is described. Apart from terminal, di- and trisubstituted olefins, for the first time the less active internal C?C double bond of tetrasubstituted alkenes can also be utilized. As an example, 2,3-dimethylbut-2-ene is converted into the corresponding n-alcohol with high yield (90 %) as well as regio- and chemoselectivity (>97 %). Key for this development is the use of a combination of Rh complexes with bulky monophosphite ligands and the Ru-based Shvo's complex. A variety of aromatic and aliphatic alkenes can be directly used to obtain mainly linear alcohols.

HIGH-COVERAGE, LOW ODOR MALODOR COUNTERACTANT COMPOUNDS AND METHODS OF USE

The present invention relates to novel compounds and their use as malodor counteractant materials.

Novel organoleptic compound

The present invention is directed to a novel compound, but-2-enoic acid 1,2-dimethyl-butyl ester, and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of but-2-enoic acid 1,2-dimethyl-butyl ester.

Organoleptic compound

The present invention is directed to a novel compound, but-2-enoic acid 1-ethyl-2-methyl-propyl ester, and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of but-2-enoic acid 1-ethyl-2-methyl-propyl ester.

Organoleptic compound

The present invention is directed to a novel compound, but-2-enoic acid 1,2-dimethyl-butyl ester, and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of but-2-enoic acid 1,2-dimethyl-butyl ester.

Novel Organoleptic Compound

The present invention is directed to a novel compound, but-2-enoic acid 1-ethyl-2-methyl-propyl ester, and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of but-2-enoic acid 1-ethyl-2-methyl-propyl ester.

A new type of phosphaferrocene-Pyrrole-phosphaferrocene P-N-P pincer ligand

A 2-ethoxycarbonylphosphaferrocene was reduced to the corresponding 2-hydroxymethyl derivative, which was condensed with pyrrole in a 2:1 ratio in the presence of BF3 to give a phosphaferrocene-pyrrole- phosphaferrocene pincer ligand. This tridentate ligand, in turn, reacted with [Rh(acac)(CO)2] to yield a rhodium carbonyl pincer complex. This complex was characterized by X-ray crystal structure analysis and tested in the hydroformylation of internal olefins.

Discovery of novel thieno[2,3-d]pyrimidin-4-yl hydrazone-based cyclin-dependent kinase 4 inhibitors: synthesis, biological evaluation and structure-activity relationships

The design, synthesis, and evaluation of novel thieno[2,3-d]pyrimidin-4-yl hydrazone analogues as cyclin-dependent kinase 4 (CDK4) inhibitors are described. In continuing our program aim to search for potent CDK4 inhibitors, the introduction of a thiazole group at the hydrazone part has led to marked enhancement of chemical stability. Furthermore, by focusing on the optimization at the C-4′ position of the thiazole ring and the C-6 position of the thieno[2,3-d]pyrimidine moiety, compound 35 has been identified with efficacy in a xenograft model of HCT116 cells. In this paper, the potency, selectivity profile, and structure-activity relationships of our synthetic compounds are discussed.