542-55-2 Usage
Description
Isobutyl formate has a fruity, ether-like odor and a sweet taste
reminiscent of rum. Isobutyl formate may be prepared from isobutyl alcohol and carbon monoxide in the presence of sodium isobutylate at 110°C and 400 atm.
Chemical Properties
Different sources of media describe the Chemical Properties of 542-55-2 differently. You can refer to the following data:
1. Isobutyl formate has a fruity, ether-like odor and a sweet taste reminiscent of rum.
2. CLEAR COLOURLESS TO LIGHT YELLOW LIQUID
Occurrence
Reported found in pineapple, apple, vinegar, wheat bread, beer, cognac and rum.
Uses
Isobutyl Formate is a synthetic flavoring agent that is a stable,
colorless liquid of fruity odor. storage should be in glass or tin
containers. it is used in fruit flavors such as pear, raspberry, and
other berry flavors with applications in beverages, ice cream, candy,
and baked goods at 2–18 ppm.
Preparation
From isobutyl alcohol and carbon monoxide in the presence of sodium isobutylate at 110°C and 400 atm
Taste threshold values
Taste characteristics at 10 ppm: slightly sweet, fresh, gives lift, fruity
General Description
A colorless liquid. Less dense than water. Flash point 60°F. Vapors heavier than air. Vapors may be narcotic and irritating in high concentrations. Used as a solvent and to make perfumes.
Air & Water Reactions
Highly flammable. Soluble in water.
Reactivity Profile
Isobutyl formate is 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.
Health Hazard
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Biochem/physiol Actions
Taste at 10 ppm
Purification Methods
Wash the formate with saturated aqueous NaHCO3, in the presence of saturated NaCl solution until no further reaction occurs, then with saturated aqueous NaCl, dry (MgSO4) and fractionally distil it. [Beilstein 2 H 21, 2 I 18, 2 II 30, 2 III 41, 2 IV 29.]
Check Digit Verification of cas no
The CAS Registry Mumber 542-55-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,4 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 542-55:
(5*5)+(4*4)+(3*2)+(2*5)+(1*5)=62
62 % 10 = 2
So 542-55-2 is a valid CAS Registry Number.
InChI:InChI=1/C5H10O2/c1-5(2)3-7-4-6/h4-5H,3H2,1-2H3
542-55-2Relevant articles and documents
PROCESS FOR MAKING FORMIC ACID UTILIZING LOWER-BOILING FORMATE ESTERS
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Paragraph 00177; 00178, (2019/02/15)
Disclosed is a process for recovering formic acid from a formate ester of a C3 to C4 alcohol. Disclosed is also a process for producing formic acid by carbonylating a C3 to C4 alcohol, hydrolyzing the formate ester of the alcohol, and recovering a formic acid product. The alcohol may be dried and returned to the reactor. The process enables a more energy efficient production of formic acid than the carbonylation of methanol to produce methyl formate.
METHOD OF CONVERTING ALCOHOL TO HALIDE
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Page/Page column 53; 132; 139; 140, (2017/01/02)
The present invention relates to a method of converting an alcohol into a corresponding halide. This method comprises reacting the alcohol with an optionally substituted aromatic carboxylic acid halide in presence of an N-substituted formamide to replace a hydroxyl group of the alcohol by a halogen atom. The present invention also relates to a method of converting an alcohol into a corresponding substitution product. The second method comprises: (a) performing the method of the invention of converting an alcohol into the corresponding halide; and (b) reacting the corresponding halide with a nucleophile to convert the halide into the nucleophilic substitution product.
Nickel-catalyzed hydrosilylation of CO2 in the Presence of Et3B for the synthesis of formic acid and related formates
Gonzalez-Sebastian, Lucero,Flores-Alamo, Marcos,Garcia, Juventino J.
, p. 7186 - 7194 (2014/01/06)
The reaction of CO2 with Et3SiH catalyzed by the nickel complex [(dippe)Ni(μ-H)]2 (1) afforded the reduction products Et3SiOCH2OSiEt3 (12%), Et 3SiOCH3 (3%), and CO, which were characterized by standard spectroscopic methods. Part of the generated CO was found as the complex [(dippe)Ni(CO)]2 (2), which was characterized by single-crystal X-ray diffraction. When the same reaction was carried out in the presence of a Lewis acid, such as Et3B, the hydrosilylation of CO2 efficiently proceeded to give the silyl formate (Et3SiOC(O)H) in high yields (85-89%), at 80 C for 1 h. Further reactivity of the silyl formate to yield formic acid, formamides, and alkyl formates was also investigated.
