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4426-51-1 Usage

General Description

4-Methyl-1,3,2-dioxathiane 2-oxide is a chemical compound that belongs to the class of organic compounds known as thietanes. These are saturated heterocyclic compounds containing a four-member ring made up of one sulfur atom and three carbon atoms. In the case of 4-methyl-1,3,2-dioxathiane 2-oxide, it includes an additional peroxide group and a methyl group attached to the cyclic structure. It has a slightly unpleasant odor. This chemical is mainly used in the industry for its wide range of potentially beneficial properties, but care should be taken to handle it safely due to its potential threats to human health and the environment.

Check Digit Verification of cas no

The CAS Registry Mumber 4426-51-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,2 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4426-51:
81 % 10 = 1
So 4426-51-1 is a valid CAS Registry Number.



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017


1.1 GHS Product identifier

Product name 4-methyl-1,3,2-dioxathiane 2-oxide

1.2 Other means of identification

Product number -
Other names 4-methyl-2-oxo-1,3,2-dioxathiane

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4426-51-1 SDS

4426-51-1Downstream Products

4426-51-1Relevant articles and documents

Preparation method of 4-methyl-1,3,2-dioxathiane 2-oxide


Paragraph 0021; 0024-0033, (2018/05/16)

The invention discloses a preparation method of 4-methyl-1,3,2-dioxathiane 2-oxide. The preparation method comprises the following steps: 1, taking 1,3-butylene glycol and thionyl chloride as raw materials, dropwise adding thionyl chloride to 1,3-butylene glycol for a synthesis reaction, and controlling the reaction system temperature to be 35-45 DEG C, so as to obtain a reaction crude product 10-30 min after the thionyl chloride is dropwise added and when the reaction is finished; 2, performing reduced-pressure rotary evaporation on the reaction crude product for acid removal, controlling thetemperature of reduced-pressure rotary evaporation to be 35-45 DEG C and the time to be 15-30 min, so as to obtain a crude product subjected to acid removal; 3, adding an acylation reagent into the crude product subjected to acid removal for a reaction, after the reaction is finished, adding an alkaline aqueous solution until the pH value is 6-7; 4, performing standing layering, separating the organic phase and the aqueous phase, washing the organic phase to obtain a first crude product, and performing extraction on the aqueous phase to obtain a second crude product; and 5, merging the firstcrude product and the second crude product, performing reduced-pressure rectification, so as to obtain the target product 4-methyl-1,3,2-dioxathiane 2-oxide. The preparation method of the invention has the advantages that the yield, productivity and purity are greatly improved.

Chemo- and Regioselective Functionalization of Polyols through Catalytic C(sp3)-C(sp3) Kumada-Type Coupling of Cyclic Sulfate Esters

Ramírez-Contreras, Rodrigo,Morandi, Bill

supporting information, p. 3718 - 3721 (2016/08/16)

This contribution describes a copper-catalyzed, C(sp3)-C(sp3) cross-coupling reaction of cyclic sulfate esters, a distinct class of electrophilic derivatives of polyols, with alkyl Grignard reagents to afford functionalized alcohol products in good yields. The method is operationally simple and highlights the potential of cyclic sulfate esters as highly reactive substrates in catalytic, chemoselective polyol transformations.

2-Oxo-1,3,2-dioxathianes. I. Preparation of the Alkyl-substituted Derivatives

Virtanen, Terttu,Nikander, Hannu

, p. 113 - 116 (2007/10/02)

2-Oxo-1,3,2-dioxathiane, all methyl- and several other alkyl-substituted 2-oxo-1,3,2-dioxathianes have been synthesized by condensing 1,3-alkanediols and thionyl chloride.The amount of the S==O-axial and S==O-equatorial isomers can be controlled by adding pyridine to the reaction mixture.

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