6920-22-5 Usage
Chemical Properties
clear colorless to light yellow liquid.
Uses
Different sources of media describe the Uses of 6920-22-5 differently. You can refer to the following data:
1. DL-1,2-Hexanediol is a solvent used to dissolve other compounds in a formulation.
2. 1,2-Hexanediol can be used in the ruthenium-catalyzed synthesis of oxazolidin-2-ones from urea. It can undergo ruthenium-hydride catalyzed dehydrative coupling with anilines to form substituted indole and quinoline products.
Definition
1,2-Hexanediol is a linear aliphatic diol with a carbon chain length containing six carbons. It is a synthetic preservative and moisture-binding agent belonging to a class of agents known as higher molecular glycols. It is considered non-sensitizing. It is ideal for use as an emollient, humectant, and wetting agent in cosmetic and skin care products.
Preparation
1,2-Hexanediol was prepared in about 45% over-all yield by a-bromination of caproic acid, hydrolysis to a-hydroxycaproic acid, and reduction with lithium aluminum hydride.Using the oxidant of H2O2, the organic acid is oxidized to peroxyacid, and the peroxyacid then epoxidizes the olefin double bond, and finally hydrolyzes to obtain 1,2-hexanediol.
benefits
1,2 hexanediol is most commonly used as a solvent in skincare formulation. It pulls the moisture up from the deeper levels of the skin, as well as from the air, to help keep the top layers of your skin from drying out. This makes It very effective at keeping your skin hydrated and providing long-term moisture. It can also help to disperse pigments more evenly in makeup products and boost the antimicrobial activity of preservatives.
General Description
1,2-Hexanediol acts as cosurfactant, used for modifying the sodium dodecyl sulfate micelles. Solubility of 1,2-hexanediol in supercritical CO2 has been reported. It has a tendency of self-association to form micelle-like aggregates.
Flammability and Explosibility
Nonflammable
Safety
1,2 hexanediol has been proven to be a completely safe and non-irritating ingredient. In an in-use safety evaluation for skin irritation and sensitization potential, 28 participants (males and females) were instructed to use a body wash containing 0.15% 1,2- hexanediol for a minimum of 3 times per week over a 30-day period. There was no evidence of erythema, edema, or dryness of application sites in any of the participants, and it was concluded that the product did not demonstrate a potential for eliciting skin irritation or sensitization.?
Purification Methods
Fractionally distil it, preferably in a vacuum. Alternatively, dissolve it in Et2O, dry with K2CO3 then Na2SO4, filter, evaporate and distil it in a vacuum. The bis-4-nitrobenzoyl derivative has m 101.5-102.5o. [Rudloff Can J Chem 36 486 1958, Beilstein 1 I 251, 1 III 2200, 1 IV 2554.]
Check Digit Verification of cas no
The CAS Registry Mumber 6920-22-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,2 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6920-22:
(6*6)+(5*9)+(4*2)+(3*0)+(2*2)+(1*2)=95
95 % 10 = 5
So 6920-22-5 is a valid CAS Registry Number.
InChI:InChI=1/C6H14O2/c1-2-3-4-6(8)5-7/h6-8H,2-5H2,1H3/t6-/m1/s1
6920-22-5Relevant articles and documents
A METHOD FOR PREPARING 1,2-HEXANEDIOL
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Paragraph 0040; 0064-0071; 0076, (2021/10/27)
The present invention provides a colourless. A method for producing high purity 1,2 - hexanediol by reacting 1 - hexenes and hydrogen peroxide to produce 1,2 - hexanediol and reacting with a reducing agent and activated carbon to produce colorless, odorless high purity 1,2 - hexanediol. The method for preparing 1,2 - hexanediol according to the present invention greatly improves purity, yield and quality, is simple and economical and industrially useful, and can be mass-produced and can be applied to various industrial fields.
Diol-Ritter Reaction: Regio- And Stereoselective Synthesis of Protected Vicinal Aminoalcohols and Mechanistic Aspects of Diol Monoester Disproportionation
Abboud, Khalil A.,Cheng, Kevin,Klosin, Jerzy,Kruper, William J.,Kruper, William R.,Lysenko, Ivan,Ondari, Mark E.,Thomas, Pulikkottil J.
, (2021/10/20)
The well-known epoxide-Ritter reaction generally affords oxazolines with poor to average regioselectivity. Herein, a mechanism-based study of the less known diol-Ritter reaction has provided a highly regioselective procedure for the synthesis of 1-vic-amido-2-esters from either terminal epoxides or 1,2-diols via Lewis acid-catalyzed monoesterification. When treated with a stoichiometric Lewis acid catalyst (BF3), these diol monoesters form dioxonium cation intermediates that are ring-opened with nitrile nucleophiles to form nitrilium intermediates, which undergo rapid and irreversible hydration to give the desired amidoesters. Diester byproduct formation is irreversible and appears to occur through disproportionation of diol monoester. With chiral epoxide starting materials, the formation of amidoester occurs with retention of configuration and no apparent erosion of optical purity as determined by single-crystal X-ray analyses and chiral chromatography, respectively. The direct access to chiral vic-amidoesters is especially practical with regard to the synthesis of antibacterial oxazolidinone analogues of the Zyvox antimicrobial family.
Chromium-Catalyzed Production of Diols From Olefins
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Paragraph 0111, (2021/03/19)
Processes for converting an olefin reactant into a diol compound are disclosed, and these processes include the steps of contacting the olefin reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the diol compound. While being contacted, the olefin reactant and the supported chromium catalyst can be irradiated with a light beam at a wavelength in the UV-visible spectrum. Optionally, these processes can further comprise a step of calcining at least a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst.
