GB527644A - Improvements in or relating to the production of substituted acetic acids - Google Patents
Improvements in or relating to the production of substituted acetic acidsInfo
- Publication number
- GB527644A GB527644A GB11024/39A GB1102439A GB527644A GB 527644 A GB527644 A GB 527644A GB 11024/39 A GB11024/39 A GB 11024/39A GB 1102439 A GB1102439 A GB 1102439A GB 527644 A GB527644 A GB 527644A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- acids
- sulphuric
- formaldehyde
- substituted acetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 235000011054 acetic acid Nutrition 0.000 title abstract 3
- 150000001243 acetic acids Chemical class 0.000 title 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 abstract 6
- 239000002253 acid Substances 0.000 abstract 4
- 125000000218 acetic acid group Chemical class C(C)(=O)* 0.000 abstract 3
- 229960004275 glycolic acid Drugs 0.000 abstract 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 150000007513 acids Chemical class 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 150000002148 esters Chemical class 0.000 abstract 2
- 150000007522 mineralic acids Chemical class 0.000 abstract 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 abstract 1
- -1 e.g. Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
- 150000003016 phosphoric acids Chemical class 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 150000007519 polyprotic acids Polymers 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical class OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
- C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/08—Esters of oxyacids of phosphorus
- C07F9/09—Esters of phosphoric acids
- C07F9/091—Esters of phosphoric acids with hydroxyalkyl compounds with further substituents on alkyl
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
- C07G99/00—Subject matter not provided for in other groups of this subclass
- C07G99/002—Compounds of unknown constitution containing sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
527,644. Substituted acetic acids. DU PONT DE NEMOURS & CO., E. I. April 11, 1939, No. 11024. Convention date, April 9, 1938. [Class 2 (iii)] Substituted acetic acids are obtained by subjecting formaldehyde, or a polymer thereof, and an inorganic acid to the action of carbon monoxide, preferably at raised temperature and pressure, the molecular proportion of the acid being greater than one-tenth of that of the formaldehyde, and the reactants being anhydrous or containing such a limited amount of water that the product is not substantially hydrolysed to hydroxyacetic acid. Specified inorganic acids are hydrochloric, hydrochromic, hydrofluoric, and phosphoric acids, hydrogen sulphide, sulphuric or sulphurous acid, or boric acid ; the products are respectively chloracetic, bromacetic, fluoracetic, phosphoroacetic, mercaptoacetic acids, or sulphuric, sulphurous or boric esters of hydroxyacetic acid. When polybasic acids are used, one or more of the hydrogen atoms may be replaced by acetic acid groups. For the weaker acids, i.e., those not capable of giving a pH of less than 6 in aqueous solution, it is desirable to add, as a catalyst, an acidic substance capable by itself of giving a pH value less than 6 in aqueous solution, e.g., hydrochloric or sulphuric acid. The process may be carried out in an autoclave, or it may be effected in a continuous manner by passing formaldehyde, acid and catalyst through a reaction zone either cocurrent or counter-current to the flow of carbon monoxide. Examples are given of the production of chloracetic and fluoracetic acids, and of sulphuric and phosphoric esters of hydroxyacetic acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US527644XA | 1938-04-09 | 1938-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB527644A true GB527644A (en) | 1940-10-14 |
Family
ID=21979748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11024/39A Expired GB527644A (en) | 1938-04-09 | 1939-04-11 | Improvements in or relating to the production of substituted acetic acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB527644A (en) |
-
1939
- 1939-04-11 GB GB11024/39A patent/GB527644A/en not_active Expired
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