Synthetic Flavours & Fragrances

119-84-6

  • Product Name：Dihydrocoumarin
  • Molecular Formula：C9H8O2
  • Specifications：99%
  • Molecular Weight：148.161
Inquiry

Product Details;

CasNo： 119-84-6

Molecular Formula： C9H8O2

Appearance： Colorless to pale yellow clear liquid

Manufacturer supply top purity Dihydrocoumarin 119-84-6 with GMP standards

  • Molecular Formula:C9H8O2
  • Molecular Weight:148.161
  • Appearance/Colour:Colorless to pale yellow clear liquid 
  • Vapor Pressure:0.00624mmHg at 25°C 
  • Melting Point:24-25 °C(lit.) 
  • Refractive Index:n20/D 1.556(lit.)  
  • Boiling Point:272 °C at 760 mmHg 
  • Flash Point:108.4 °C 
  • PSA：26.30000 
  • Density:1.169 g/cm3 
  • LogP:1.53820 

Cinnamic acid(Cas 119-84-6) Usage

Sources

http://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:16151 http://www.bojensen.net/EssentialOilsEng/EssentialOils29/EssentialOils29.htm#Tonka https://books.google.kg/books?id=pUEqBgAAQBAJ&pg=PA427&lpg=PA427&dq=dihydrocoumarin+uses&source=bl&ots=HTZrffvsXu&sig=GPGKqrMRXQaRJ-qgHk7aULeBmGw&hl=en&sa=X&redir_esc=y#v=onepage&q=dihydrocoumarin%20uses&f=false https://products.symrise.com/aroma-molecules/product-search/dihydrocoumarin/action/pdf/ http://www.lookchem.com/3-4-Dihydrocoumarin/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1315280/

Preparation

Dihydrocoumarin is synthesized by reduction of coumarin under pressure in the presence of nickel at 160 to 200°C or in the presence of Pd-BaSO4 in alcoholic solution.

Synthesis Reference(s)

Tetrahedron Letters, 37, p. 4555, 1996 DOI: 10.1016/0040-4039(96)00902-1

Air & Water Reactions

Solutions of the chemical in water are stable for less than two hours. Insoluble in water.

Reactivity Profile

Hydrocoumarin is a lactone (behaves as an ester). Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Hydrocoumarin may hydrolyze under alkaline or acidic conditions.

Fire Hazard

Hydrocoumarin is combustible.

Biochem/physiol Actions

Taste at 10 ppm

Definition

ChEBI: A chromanone that is the 3,4-dihydro derivative of coumarin.

General Description

White to pale yellow clear oily liquid with a sweet odor. Solidifies around room temperature.

InChI:InChI=1/C9H8O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-4H,5-6H2

119-84-6 Relevant articles

Hydrogenation of coumarin to octahydrocoumarin over a Ru/C catalyst

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, p. 957 - 960 (2015)

The production of octahydrocoumarin, whi...

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Odaira,Tsutsumi

, p. 564 (1959)

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Cerium-Catalyzed Hydrosilylation of Acrylates to Give α-Silyl Esters

Pindwal, Aradhana,Patnaik, Smita,Everett, William C.,Ellern, Arkady,Windus, Theresa L.,Sadow, Aaron D.

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The homoleptic organocerium complex Ce{C...

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, p. 3035 - 3040 (2003)

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Synthesis of 6-, 7-, and 8-membered lactones via the nickel-catalysed electrochemical arylation of electron-deficient olefins

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A nickel-catalysed electroreductive proc...

An efficient synthesis of dihydrocoumarins

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, p. 1161 - 1164 (1992)

Dihydrocoumarins are obtained in 40 to 6...

Palladium nanoparticles stabilised by PTA derivatives in glycerol: Synthesis and catalysis in a green wet phase

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HYDROGENATION OF OXYGEN-CONTAINING HETEROCYCLIC COMPOUNDS ON GROUP VIII METALS

Karakhanov, E. A.,Dedov, A. G.,Loktev, A. S.

, p. 993 - 995 (1981)

The hydrogenation of a number of oxygen-...

Heterogeneous Baeyer-Villiger oxidation of ketones using m- chloroperbenzoic acid catalyzed by hydrotalcites

Kaneda, Kiyotomi,Yamashita, Toyokazu

, p. 4555 - 4558 (1996)

Hydrotalcites promote the Baeyer-Villige...

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Johnston,Gross

, p. 1264 (1957)

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SmI2 mediated Barbier reaction of α-fluoro ethers

Ringom, Rune,Benneche, Tore

, p. 121 - 122 (1999)

Addition of α-fluoro ethers to cyclohexa...

Selective Hydrogenation of Unsaturated Carbon-Carbon Bonds in Aromatic-Containing Platform Molecules

Schwartz, Thomas J.,Lyman, Spencer D.,Motagamwala, Ali Hussain,Mellmer, Max A.,Dumesic, James A.

, p. 2047 - 2054 (2016)

The combination of chemical and biologic...

Tetrahedral Intermediate in Acyl Transfer Reactions. A Revaluation of the Significance of Rate Data Used in Deriving Fundamental Linear Free Energy Relationships

DeTar, DeLos F.

, p. 7205 - 7212 (1982)

A theoretical investigation of model mec...

Recyclable selective palladium-catalyzed synthesis of five-, six- or seven-membered ring lactones and lactams by cyclocarbonylation in ionic liquids

Ye, Fangguo,Alper, Howard

, p. 1855 - 1861 (2006)

The ionic liquids, BMIM PF6 or BMIM NTf2...

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Sato et al.

, p. 2971 (1964)

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Industrial production method of 4-hydroxy-1-indanone

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, (2021/08/14)

The invention discloses an industrial pr...

Reduction of Electron-Deficient Alkenes Enabled by a Photoinduced Hydrogen Atom Transfer

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Direct hydrogen atom transfer from a pho...

Cobalt-Catalyzed Aerobic Oxidative Cleavage of Alkyl Aldehydes: Synthesis of Ketones, Esters, Amides, and α-Ketoamides

Li, Tingting,Hammond, Gerald B.,Xu, Bo

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A widely applicable approach was develop...

Hydrogenation reaction method

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Paragraph 0034; 0209-0212, (2020/05/14)

The invention relates to a hydrogenation...

119-84-6 Process route

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β-phenylpropionyl peroxide

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1,4-diphenylbutane

ethylbenzene
100-41-4,27536-89-6

ethylbenzene

2-phenylethanol
60-12-8

2-phenylethanol

3-phenylpropionic acid 2-phenylethyl ester
28049-10-7

3-phenylpropionic acid 2-phenylethyl ester

C<sub>6</sub>H<sub>4</sub>(CH<sub>2</sub>CH<sub>2</sub>C(O)O)
119-84-6,1341-36-2

C6H4(CH2CH2C(O)O)

3-Phenylpropionic acid
501-52-0

3-Phenylpropionic acid

Conditions
Conditions Yield
With P0 silica; at 55 ℃; Rate constant; Product distribution; coadsorbed O2, photolysis, other temperatures;
48.4%
18.2 % Chromat.
2.04 % Chromat.
0.63 % Chromat.
9.3 % Chromat.
3.92 % Chromat.
diethoxy-2,2 benzopyranne-1
84095-61-4

diethoxy-2,2 benzopyranne-1

ethyl 3-(2-hydroxyphenyl)propanoate
20921-04-4

ethyl 3-(2-hydroxyphenyl)propanoate

C<sub>6</sub>H<sub>4</sub>(CH<sub>2</sub>CH<sub>2</sub>C(O)O)
119-84-6,1341-36-2

C6H4(CH2CH2C(O)O)

Conditions
Conditions Yield
With water; formic acid; In 1,4-dioxane; at 25.2 ℃; Rate constant; Thermodynamic data; var. acid catalysts, var. pH, catalytic constants, ΔH(excit.), ΔS(excit.);
96 % Spectr.
4 % Spectr.

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