US3373192A - Preparation of alkane sulfonyl chlorides from trialkylaluminum and sulfuryl chloride - Google Patents

Preparation of alkane sulfonyl chlorides from trialkylaluminum and sulfuryl chloride Download PDF

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Publication number
US3373192A
US3373192A US834958A US83495859A US3373192A US 3373192 A US3373192 A US 3373192A US 834958 A US834958 A US 834958A US 83495859 A US83495859 A US 83495859A US 3373192 A US3373192 A US 3373192A
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trialkylaluminum
sulfuryl chloride
alkane sulfonyl
preparation
reaction
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US834958A
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English (en)
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Pat W K Flanagan
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ConocoPhillips Co
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Continental Oil Co
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00Sulfonic acids; Halides, esters, or anhydrides thereof

Definitions

  • Suitable trialkylaluminum compounds include trimethyl, triethyl, tripropyl, etc., aluminum compounds. I prefer to employ trialkylaluminum compounds wherein the alkyl group contains from 6 to 18 carbon atoms, but compounds can be used wherein the alkyl group contains a larger number of carbon atoms. In addition to trialkylaluminum compounds, other aluminum organo compounds may be used, such as those identified by the general formulas AlR C1 and R AlOR wherein the Rs represent alkyl radicals containing from 1 to 18 or more carbon atoms. The alkyl groups of these compounds may be the same or diflerent.
  • Suitable solvents for dissolving the trialkylaluminum compound and the sulfuryl chloride include aromatic and aliphatic hydrocarbons and ethers. I prefer to employ a solvent that has a boiling point sutiiciently low so that it can be readily removed from the other components in the reaction mixture by distillation but high enough that losses through evaporation are not excessive. Also, if the solvent has low boiling point it will form explosive mix tures with air readily and as a consequence the use of such a compound can be hazardous. As a rule, suitable solvents are those having boiling points within the range of about 30 to 200 C. I prefer to use solvents having boiling points within the range of about 40 to C. Preferred solvents are the hydrocarbons, and it is not necessary to use a pure hydrocarbon, however, as mixtures are satisfactory.
  • the temperature of operation that may vary from about 25 to C.
  • the time of reaction that is very rapid and varies inversely as temperature and varies from a few seconds to several hours. Specifically, when a reaction tempera ture of 100 is employed, the reaction is complete in a few seconds. On the other hand, if the reaction temperature is 25" C., several hours time will be required for the reaction to go to completion. When the process is operated within the preferred temperature range (0 to 30 C.), the time of reaction varies from 15 minutes to 2 hours.
  • the reaction is carried out in the absence of air, and this is accomplished by maintaining the entire reaction under an atmosphere of an inert gas.
  • gases for this purpose include any gas that will not react with any of the reactants present. This will include the noble gases and nitrogen.
  • parts by weight bear the same relation to parts by volume as do grams to cubic centimeters.
  • Example 1 A solution of 161 parts by weight of sulfuryl chloride dissolved in 200 parts by volume of hexane was placed in a reaction vessel. After the air in the reaction vessel was replaced with nitrogen, 260 parts by weight of trioctylaluminum was added thereto slowly with stirring while the temperature was maintained between 15 to -25 C. After the addition was completed, the reaction mixture was allowed to stand /2 hour at room temperature and then the aqueous layer extracted with 100 parts by volume of hexane. The hexane was removed under a vacuum and the l-octanesulfonyl chloride recovered in a yield of 75% of theory. Analysis of the recovered product showed that the chlorine content was 16.06% as contrasted to theoretical chlorine content of 16.71%. It exhibited characteristic infrared absorption bands at 7.25 and 8.56 microns.
  • Example 2 A solution of 96 parts by weight of sulfuryl chloride dissolved in parts of hexane was placed in a reaction vessel. After the air was replaced with nitrogen 240 parts 3 by weight of trioctadecylaluminum was added to the contents in the reaction vessel. The procedure was similar to the procedure used in Example 1 with the exception that the temperature was maintained within a range of to 25 C. In the end of the reaction, the reaction mixture was poured onto 400 parts by weight of ice producing a white precipitate. The mixture was heated on a steam bath and hexane was added until the precipitate dissolved.
  • the hexane layer was separated and, after cooling and evaporating the hexane, l-octadecanesulfonyl chloride was obtained in a good yield. Analysis of this product showed that it contained 9.95% chlorine as against 10.07% on a calculated basis. The product exhibited characteristic infrared absorption bands at 7.35 and 8.65 microns.
  • a process for the preparation of an alkane sulfonyl chloride which comprises reacting a trialkylaluminum compound with sulfuryl chloride wherein the alkyls in said alkyl aluminum compound contains from 1-18 carbon atoms therein, and wherein said trialkylaluminum compound is added under an atmosphere of an inert gas to sulfuryl chloride at a temperature within the range of 25 to 100 C. in the presence of an inert organic solvent, cooling the resultant reaction mixture, and then recovering the alkane sulfonyl chloride.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US834958A 1959-08-20 1959-08-20 Preparation of alkane sulfonyl chlorides from trialkylaluminum and sulfuryl chloride Expired - Lifetime US3373192A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL254277D NL254277A (enrdf_load_stackoverflow) 1959-08-20
US834958A US3373192A (en) 1959-08-20 1959-08-20 Preparation of alkane sulfonyl chlorides from trialkylaluminum and sulfuryl chloride

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US834958A US3373192A (en) 1959-08-20 1959-08-20 Preparation of alkane sulfonyl chlorides from trialkylaluminum and sulfuryl chloride

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NL (1) NL254277A (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US667861A (en) * 1900-08-25 1901-02-12 Basle Chemical Works Process of producing chlorids of aromatic sulfonic acids.
DE1050762B (de) * 1957-06-18 1959-02-19 Dr E H Karl Ziegler Dr Verfahren zur Herstellung von Sulfinsaeuren
US3076044A (en) * 1960-12-30 1963-01-29 Armour & Co Method of preparing long chain alkyl chlorides

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US667861A (en) * 1900-08-25 1901-02-12 Basle Chemical Works Process of producing chlorids of aromatic sulfonic acids.
DE1050762B (de) * 1957-06-18 1959-02-19 Dr E H Karl Ziegler Dr Verfahren zur Herstellung von Sulfinsaeuren
US3076044A (en) * 1960-12-30 1963-01-29 Armour & Co Method of preparing long chain alkyl chlorides

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NL254277A (enrdf_load_stackoverflow)

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