SU154249A1 - - Google Patents
Info
- Publication number
- SU154249A1 SU154249A1 SU756408A SU756408A SU154249A1 SU 154249 A1 SU154249 A1 SU 154249A1 SU 756408 A SU756408 A SU 756408A SU 756408 A SU756408 A SU 756408A SU 154249 A1 SU154249 A1 SU 154249A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chloro
- fluorophenol
- hours
- preparation
- temperature
- Prior art date
Links
- IGYXYGDEYHNFFT-UHFFFAOYSA-N 2-chloro-4-fluorophenol Chemical compound OC1=CC=C(F)C=C1Cl IGYXYGDEYHNFFT-UHFFFAOYSA-N 0.000 description 3
- RHMPLDJJXGPMEX-UHFFFAOYSA-N 4-fluorophenol Chemical compound OC1=CC=C(F)C=C1 RHMPLDJJXGPMEX-UHFFFAOYSA-N 0.000 description 3
- YBBRCQOCSYXUOC-UHFFFAOYSA-N Sulfuryl chloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002363 herbicidal Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Description
Способы пол -чс111. 2-хлор-4-фторфе110ла в литературе не описаны.Ways half-chs111. 2-chloro-4-fluorofe110la is not described in the literature.
Предложено пол -чать 2-хлор-4-фторфе110Л хлорированием 4-фторфенола хлористым сульфурилом при темиературе 70-80. Реакцию завершают непродолжительным нагреванием до 90-100.It was proposed to start 2-chloro-4-fluorophe 110L by chlorinating 4-fluorophenol with sulphuryl chloride at 70-80. The reaction is completed by brief heating to 90-100.
Пол}ченный 2-хлор-4-фторфенол может быть использован в качестве иолуиродукта ортаннческого синтеза, в частности дл получени 2-хлор-4-фторфеиокси ксусиой кислоты, котора обладает гербицидиыми свойствами и находит широкое при:,1енение в сельском хоз йстве.The obtained 2-chloro-4-fluorophenol can be used as a semi-organic synthesis product, in particular for the preparation of 2-chloro-4-fluorfeiooxy xusic acid, which has herbicidal properties and is widely used in: agricultural use.
Пример. К П2 г 4-фторфенола, иатретото до 50-60°, добавл ют при перемешивании в течение 2-2,5 час 150 г .хлористого сульфурила, поддержива температ}-ру в пределах 60-70. Реакционную смесь иатревают 4-6 час при 70-80 и 0,5-1 час при 90-100 и 2-.лор-4фторфенол выдел ют иерегонкой. Выход 85-92%, т. кип. 171 -172, 1,5304.Example. 150 g of sulphuryl chloride are added with stirring for 2-2.5 hours to P2 g of 4-fluorophenol, and atreto to 50-60 °, maintaining the temperature within 60-70. The reaction mixture is stirred for 4-6 hours at 70-80 and 0.5-1 hour at 90-100 and 2-chloro-4fluorophenol is isolated by distillation. Output 85-92%, t. Kip. 171-172, 1.5304.
Способ получени 2-хлор-4-фторфенола, отличающийс тем, что 4-фторфенол хлорируют хлористым сульфурилом при те.мпературе 70-80°.A process for the preparation of 2-chloro-4-fluorophenol, characterized in that 4-fluorophenol is chlorinated with sulfuryl chloride at a temperature of 70-80 °.
Предмет изобретени Subject invention
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU154249A1 true SU154249A1 (en) | |
| SU154250A1 SU154250A1 (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620042A (en) * | 1984-03-13 | 1986-10-28 | Central Glass Company, Limited | Preparation of 2-chloro-4-fluorophenol from 4-fluorophenol |
| US5053557A (en) * | 1989-09-12 | 1991-10-01 | Sagami Chemical Research Center | Process for preparing 2-chloro-4-fluorophenol |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620042A (en) * | 1984-03-13 | 1986-10-28 | Central Glass Company, Limited | Preparation of 2-chloro-4-fluorophenol from 4-fluorophenol |
| US5053557A (en) * | 1989-09-12 | 1991-10-01 | Sagami Chemical Research Center | Process for preparing 2-chloro-4-fluorophenol |
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