DE255942C - - Google Patents
Info
- Publication number
- DE255942C DE255942C DENDAT255942D DE255942DA DE255942C DE 255942 C DE255942 C DE 255942C DE NDAT255942 D DENDAT255942 D DE NDAT255942D DE 255942D A DE255942D A DE 255942DA DE 255942 C DE255942 C DE 255942C
- Authority
- DE
- Germany
- Prior art keywords
- parts
- benzene
- solution
- acid esters
- colorless
- 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.)
- Active
Links
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 45
- -1 dialkylamino formic acid esters Chemical class 0.000 claims description 20
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 235000019270 ammonium chloride Nutrition 0.000 claims description 6
- 238000004821 distillation Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 125000005270 trialkylamine group Chemical group 0.000 claims description 3
- 239000012230 colorless oil Substances 0.000 claims description 2
- AHWALFGBDFAJAI-UHFFFAOYSA-N phenyl carbonochloridate Chemical compound ClC(=O)OC1=CC=CC=C1 AHWALFGBDFAJAI-UHFFFAOYSA-N 0.000 claims description 2
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims 3
- 125000002603 chloroethyl group Chemical group [H]C([*])([H])C([H])([H])Cl 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910000462 iron(III) oxide hydroxide Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- XOIJDIYJCTXRQR-UHFFFAOYSA-N phenyl n,n-diethylcarbamate Chemical compound CCN(CC)C(=O)OC1=CC=CC=C1 XOIJDIYJCTXRQR-UHFFFAOYSA-N 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 2
- IKADZPYEPSHGPY-UHFFFAOYSA-N benzene;n,n-dimethylmethanamine Chemical compound CN(C)C.C1=CC=CC=C1 IKADZPYEPSHGPY-UHFFFAOYSA-N 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CZHLPWNZCJEPJB-UHFFFAOYSA-N 1-chloro-3-methylbutane Chemical compound CC(C)CCCl CZHLPWNZCJEPJB-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- WOAZEKPXTXCPFZ-UHFFFAOYSA-N dimethyl(phenyl)azanium;chloride Chemical compound Cl.CN(C)C1=CC=CC=C1 WOAZEKPXTXCPFZ-UHFFFAOYSA-N 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- DWLVWMUCHSLGSU-UHFFFAOYSA-N dimethylcarbamic acid Chemical compound CN(C)C(O)=O DWLVWMUCHSLGSU-UHFFFAOYSA-N 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 125000001188 haloalkyl group Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- KDUFRLUGTLSJKD-UHFFFAOYSA-N naphthalen-2-yl carbonochloridate Chemical compound C1=CC=CC2=CC(OC(=O)Cl)=CC=C21 KDUFRLUGTLSJKD-UHFFFAOYSA-N 0.000 description 1
- MYOHNZJKOAODMX-UHFFFAOYSA-N phenyl n,n-dimethylcarbamate Chemical compound CN(C)C(=O)OC1=CC=CC=C1 MYOHNZJKOAODMX-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C271/06—Esters of carbamic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE255942C true DE255942C (enrdf_load_stackoverflow) |
Family
ID=514006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT255942D Active DE255942C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE255942C (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009007995A1 (en) * | 2007-07-09 | 2009-01-15 | Suven Life Sciences Limited | Process for preparing zolpidem and its intermediate |
-
0
- DE DENDAT255942D patent/DE255942C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009007995A1 (en) * | 2007-07-09 | 2009-01-15 | Suven Life Sciences Limited | Process for preparing zolpidem and its intermediate |
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