10522-18-6 Usage
Description
2-Undecynoic Acid Methyl Ester, also known as Methyl 2-undecynoate, is an organic compound with a powerful, waxy, green, and floral odor. It has a sweet flavor reminiscent of violet. This ester can be synthesized through a series of chemical reactions starting from methyl nonyl ketone and involving the use of phosphorous pentachloride, potassium carbonate, and sodium with methyl chlorocarbonate.
Uses
Used in Flavor and Fragrance Industry:
2-Undecynoic Acid Methyl Ester is used as a flavoring agent for its sweet, green, fruity, and oily taste characteristics. It is particularly suitable for enhancing the flavor of foods and beverages that require a green, floral, or fruity note.
Used in Perfumery:
In the perfumery industry, 2-Undecynoic Acid Methyl Ester is used as a fixative and fragrance ingredient due to its powerful, waxy, green, and floral odor. It helps to add depth and complexity to perfume compositions, contributing to their overall scent profile.
Used in Cosmetics:
2-Undecynoic Acid Methyl Ester can be used in the cosmetics industry as an ingredient in various personal care products, such as lotions, creams, and shampoos. Its pleasant odor and sweet flavor make it an attractive addition to these products, enhancing their sensory appeal.
Used in the Pharmaceutical Industry:
Although not explicitly mentioned in the provided materials, 2-Undecynoic Acid Methyl Ester may also find applications in the pharmaceutical industry, potentially serving as an intermediate in the synthesis of various drugs or being used as a component in drug delivery systems due to its unique chemical properties.
Preparation
By methylation of the corresponding acid at the boil in the presence of HCl or at room temperature in the presence of
H2SO4; the acid can be prepared from methyl nonyl ketone by reaction with phosphorus pentachloride, which yields the acetylenic
compound; treatment of this with potassium carbonate yields undecyne, which is then converted to the acid by treatment with sodium
and methyl chlorocarboante.
Check Digit Verification of cas no
The CAS Registry Mumber 10522-18-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,5,2 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 10522-18:
(7*1)+(6*0)+(5*5)+(4*2)+(3*2)+(2*1)+(1*8)=56
56 % 10 = 6
So 10522-18-6 is a valid CAS Registry Number.
10522-18-6Relevant articles and documents
Efficient preparative-scale procedures for the Pd-catalyzed methoxycarbonylation of acetylenes
Vasilevsky,Trofimov,Mal'kina,Brandsma
, p. 85 - 88 (1994)
A number of acetylenic esters RC≡C-COOCH3 have been prepared in good yields on a preparative scale by Pd-catalyzed methoxycarbonylation of acetylenes RC≡CH.
Synthesis of 2-acetylenic carboxylic acids, 1-sulfinyl and 1-sulfonyl- 2-ketones from 2-acetylenic phenyl sulfides
Fortes, Carlos C.,Garrote, Clevia F.D.
, p. 2993 - 3026 (2007/10/03)
Monochlorination at the 1-position with sulfuryl chloride, followed by methanolysis converted 2-acetylenic phenyl sulfides into 1-methoxy-2- acetylenic phenyl sulfides. Oxidation with chromic acid gave 2-acetylenic carboxylic acids. Oxidation of 2-acetylenic phenyl sulfides with Oxone and hydrogen peroxide in acetic acid gave the corresponding sulfoxides and sulfones respectively. Diethylamine addition to the triple bond produced enamines which were hydrolyzed with aqueous hydrochloric acid to the corresponding 1-sulfinyl and 1-sulfonyl-2-ketones.