GB673871A - Improvements in or relating to process for the manufacture of tetraalkyllead compounds - Google Patents
Improvements in or relating to process for the manufacture of tetraalkyllead compoundsInfo
- Publication number
- GB673871A GB673871A GB24895/49A GB2489549A GB673871A GB 673871 A GB673871 A GB 673871A GB 24895/49 A GB24895/49 A GB 24895/49A GB 2489549 A GB2489549 A GB 2489549A GB 673871 A GB673871 A GB 673871A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- alkyl
- alkylating agent
- tetra
- magnesium
- 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
- 238000000034 method Methods 0.000 title abstract 5
- 150000001875 compounds Chemical class 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 229940100198 alkylating agent Drugs 0.000 abstract 5
- 239000002168 alkylating agent Substances 0.000 abstract 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 4
- 239000003054 catalyst Substances 0.000 abstract 4
- 229910052749 magnesium Inorganic materials 0.000 abstract 4
- 239000011777 magnesium Substances 0.000 abstract 4
- 239000003513 alkali Substances 0.000 abstract 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 229910000978 Pb alloy Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 150000001348 alkyl chlorides Chemical class 0.000 abstract 1
- 150000001350 alkyl halides Chemical class 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- -1 aralkyl ethers Chemical class 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 150000004292 cyclic ethers Chemical class 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 1
- 150000004694 iodide salts Chemical class 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 150000003512 tertiary amines Chemical class 0.000 abstract 1
- 125000005207 tetraalkylammonium group Chemical group 0.000 abstract 1
Classifications
-
- 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
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/24—Lead compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Tetra-alkyl lead compounds are prepared by reacting an alkylating agent with lead and free metallic magnesium in the presence of a catalyst, said alkylating agent comprising one or more esters of inorganic acids having the desired alkyl group attached to the negative radical, and said catalyst being one or more organic compounds selected from the group comprising ethers, cyclic ethers, tertiary amines and substituted ammonium salts. The lead may be in the form of an alloy, e.g. with alkali or alkaline earth metals or with magnesium. The alkylating agent may be an alkyl chloride, bromide, iodide or phosphate, e.g. an alkyl halide containing not more than 10 carbon atoms. Catalysts that may be used include alkyl and aralkyl ethers, tetra-alkylammonium and aralkylammonium iodides and trialkyl- and triaralkyl-amines. The reaction is preferably carried out at a temperature within the range of 45 DEG to 85 DEG C. for from 1/2 hour to 6 hours. The ratio by weight of magnesium to lead may be between 1/100 and 30/100. The ratio by weight of catalyst to magnesium may be between 8/1 and 1/20. The alkylating agent may be employed in excess over the stoichiometric amount. The lead used in the above process may be obtained from a process wherein both tetraalkyl lead and free lead are formed, e.g. a two-stage process may be used wherein free lead and tetra-alkyl lead are formed from the reaction of an alkali metal-lead alloy and an alkylating agent and the free lead so formed is reacted in accordance with the above process to form more tetra-alkyl lead. A number of examples are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85053A US2535190A (en) | 1949-04-01 | 1949-04-01 | Manufacture of alkyllead compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673871A true GB673871A (en) | 1952-06-11 |
Family
ID=22189160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24895/49A Expired GB673871A (en) | 1949-04-01 | 1949-09-28 | Improvements in or relating to process for the manufacture of tetraalkyllead compounds |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2535190A (en) |
| DE (1) | DE888696C (en) |
| FR (1) | FR997064A (en) |
| GB (1) | GB673871A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2819281A (en) * | 1954-04-14 | 1958-01-07 | Ethyl Corp | Ethylation process |
| NL262356A (en) * | 1960-03-15 | Merck & Co Inc | ||
| US3143481A (en) * | 1963-10-22 | 1964-08-04 | Ethyl Corp | Recovery of alkyllead compounds |
| US3442923A (en) * | 1965-02-04 | 1969-05-06 | Houston Chem Corp | Process for the preparation of alkyl lead compounds |
| US3401188A (en) * | 1965-08-05 | 1968-09-10 | Du Pont | Process for making tetramethyl lead |
| US3457288A (en) * | 1966-04-13 | 1969-07-22 | Ppg Industries Inc | Process for manufacturing tetraorganolead compounds |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB214221A (en) * | 1923-04-13 | 1925-07-22 | Standard Dev Co | An improved process of making metallo-organic compounds |
| US1949949A (en) * | 1930-01-17 | 1934-03-06 | Sun Oil Co | Amyl derivatives of lead and their preparation |
| US2000069A (en) * | 1932-05-24 | 1935-05-07 | Du Pont | Preparation of lead alkyls |
| US2012356A (en) * | 1932-11-18 | 1935-08-27 | Shappirio Sol | Metallo organo derivatives |
| US2061267A (en) * | 1934-11-16 | 1936-11-17 | Du Pont | Preparation of lead-sodiummagnesium alloys |
| US2270109A (en) * | 1938-02-16 | 1942-01-13 | Ethyl Gasoline Corp | Manufacture of methyl and ethyl lead compounds |
-
1949
- 1949-04-01 US US85053A patent/US2535190A/en not_active Expired - Lifetime
- 1949-09-28 GB GB24895/49A patent/GB673871A/en not_active Expired
- 1949-10-08 FR FR997064D patent/FR997064A/en not_active Expired
- 1949-10-23 DE DEE86A patent/DE888696C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR997064A (en) | 1951-12-31 |
| US2535190A (en) | 1950-12-26 |
| DE888696C (en) | 1953-09-03 |
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