RO68116B1 - Ester asimetric, al acidului fosforos - Google Patents
Ester asimetric, al acidului fosforos Download PDFInfo
- Publication number
- RO68116B1 RO68116B1 RO89885A RO8988577A RO68116B1 RO 68116 B1 RO68116 B1 RO 68116B1 RO 89885 A RO89885 A RO 89885A RO 8988577 A RO8988577 A RO 8988577A RO 68116 B1 RO68116 B1 RO 68116B1
- Authority
- RO
- Romania
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- sub
- ppm
- delta
- acid
- fosforos
- Prior art date
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- 150000002148 esters Chemical class 0.000 title abstract description 7
- 239000002253 acid Substances 0.000 title abstract 2
- 239000000126 substance Substances 0.000 abstract description 6
- 238000009835 boiling Methods 0.000 abstract description 3
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- XRBCRPZXSCBRTK-UHFFFAOYSA-N phosphonous acid Chemical compound OPO XRBCRPZXSCBRTK-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- 108090000371 Esterases Proteins 0.000 description 1
- 238000006136 alcoholysis reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- GHZKGHQGPXBWSN-UHFFFAOYSA-N methyl(propan-2-yloxy)phosphinic acid Chemical compound CC(C)OP(C)(O)=O GHZKGHQGPXBWSN-UHFFFAOYSA-N 0.000 description 1
- PMVVRSKJCGEFIY-UHFFFAOYSA-N methylphosphonous acid Chemical class CP(O)O PMVVRSKJCGEFIY-UHFFFAOYSA-N 0.000 description 1
- -1 phosphorous acid ester Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
Abstract
Inventia se refera la un ester asimetric, al acidului fosforos, care are formula structurala chimica corespunzatoare formulei I, sub forma de lichid incolor, cu punct de fierbere Pf=35...38 degree C/100 mm Hg, deplasari chimice ale protonilor gruparilor caracteristice, fata de hexametildisiloxan, pentru CH<sub>3</sub> - P < dublet delta<sub>1</sub>=0,959 ppm; delta<sub>2</sub>=1,066 ppm; CH<sub>3</sub> - O -P- < dublet delta<sub>1</sub>=3,145 ppm; delta<sub>2</sub>=3,284 ppm.
Description
RO 68116 1 Prezenta invenţie se referă la un ester asimetric al acidului fosfonos, cu proprietăţi insecticide. Se cunosc produse cu formulele: OC2H5 OC2H5 CH3 -P sau CH3 -P OCsH5 OC6H4 - Clp care se obţin prin următoarele metode: - prin transesterificare, dintr-un ester simetric al unui acid fosfonos şi un alcool; - prin coproporţionarea a doi esteri simetrici diferiţi ai aceluiaşi acid fosfonos; - prin alcooliza esteram idelor acizilor fosfonoşi. Esterul conform prezentei invenţii lărgeşte gama compuşilor acidului metil-fosfonos prin aceea că are structura chimică corespunzătoare formulei I: OC2H5 CH3 -P (I) OCH3 sub formă de lichid incolor, cu punct de fierbere (Pf) = 35...38"C/95...100 mm Hg, deplasări chimice ale protonilor grupărilor caracteristice fată de hexametildisiloxan, pentru: - CH3 - P < dublet cu 6,=0,959 ppm; δ2=1,066 ppm; - CH3 - O - P < dublet cu 6,=3,145 ppm; δ2=3,284 ppm. Se dă, în continuare, un exemplu de realizare a prezentei invenţii. 5 10 15 20 25 30 35 2 La 32 g N,N-dimetilamidometilfos-fonit de etil, se adaugă sub agitare, la 40.. .60°C, în atmosferă de gaz inert, 8,5 g alcool metilic absolut în decurs de 30.. .40 min. După adăugarea alcoolului, amestecul de reacţie se menţine la » » 55.. .60”C, timp de 3...4 h. Amestecul de reacţie se fracţionează la presiune redusă. Se obţin 17...18 g ester metiletilic al acidului metilfosfonos cu P,=35...38°C/ 95.. . 100 mm col. Hg. Spectroscopia RMN de protoni a dat următoarele deplasări caracteristice: - CH3 - P < dublet cu 6,=0,959 ppm; δ2=1,066 ppm; - CH3 - O - P < dublet cu 6,=3,145 ppm; δ2=3,284 ppm. Esterul conform invenţiei prezintă avantajul utilizării ca intermediar în sinteza unor insecticide organo-fosforice. Revendicare Ester asimetric al acidului fosfonos, caracterizat prin aceea că are formula structurală chimică corespunzătoare formulei I: OC2H5 CH3-P (I) OCH3 sub formă de lichid incolor, cu punct de fierbere = 35...38°C/100 mm Hg, deplasări chimice ale protonilor grupărilor caracteristice faţă de hexametildisiloxan, pentru: - CH3 - P < dublet 6,=0,959 ppm; δ2=1,066 ppm; - CH3 - O - P < dublet 6,=3,145 ppm; 62=3,284 ppm.
Referinţe bibliografice: - Petrov K.A. şi colab., J.Obsc.Him. 32, 1974 (1962); - Petrov K.A. şi colab., J.Obsc.Him. 33, 1246 (1963). Preşedintele comisiei de examinare: chim. Tenea Georgeta Examinator; ing. Rusin Ligia
Editura
Editare şi tehnoredactare computerizată - OSIM Tipărit la: Oficiul de Stat pentru Invenţii şi Mărci
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO89885A RO68116B1 (ro) | 1977-04-01 | 1977-04-01 | Ester asimetric, al acidului fosforos |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO89885A RO68116B1 (ro) | 1977-04-01 | 1977-04-01 | Ester asimetric, al acidului fosforos |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO68116B1 true RO68116B1 (ro) | 2002-06-28 |
Family
ID=40902979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO89885A RO68116B1 (ro) | 1977-04-01 | 1977-04-01 | Ester asimetric, al acidului fosforos |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO68116B1 (ro) |
-
1977
- 1977-04-01 RO RO89885A patent/RO68116B1/ro unknown
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