JPS55151540A - Method of simultaneous production of carbamic ester and formamide - Google Patents
Method of simultaneous production of carbamic ester and formamideInfo
- Publication number
- JPS55151540A JPS55151540A JP5949679A JP5949679A JPS55151540A JP S55151540 A JPS55151540 A JP S55151540A JP 5949679 A JP5949679 A JP 5949679A JP 5949679 A JP5949679 A JP 5949679A JP S55151540 A JPS55151540 A JP S55151540A
- Authority
- JP
- Japan
- Prior art keywords
- formamide
- reaction
- urea
- ester
- formic ester
- 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.)
- Granted
Links
Abstract
PURPOSE: The reaction of inexpensive and readily available urea with a formic ester gives simultaneously both of a starting material of medicines such as hypnotic and another starting material of chloramine or solvent.
CONSTITUTION: The reaction between a formic ester of HCOOR (R is alkyl) and urea gives simultaneously both of a carbamic ester of NH2COOR and formamide. The reaction is effected preferably at 120W200°C under a partial pressure of carbon monoxide of higher than 10kg/cm2G in the presence of a catalyst of heavy metal salt. The amount of the formic ester employed is 0.5W10, preferably 1W5mol, per mol of urea.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5949679A JPS55151540A (en) | 1979-05-15 | 1979-05-15 | Method of simultaneous production of carbamic ester and formamide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5949679A JPS55151540A (en) | 1979-05-15 | 1979-05-15 | Method of simultaneous production of carbamic ester and formamide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55151540A true JPS55151540A (en) | 1980-11-26 |
JPS6245857B2 JPS6245857B2 (en) | 1987-09-29 |
Family
ID=13114943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5949679A Granted JPS55151540A (en) | 1979-05-15 | 1979-05-15 | Method of simultaneous production of carbamic ester and formamide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55151540A (en) |
-
1979
- 1979-05-15 JP JP5949679A patent/JPS55151540A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6245857B2 (en) | 1987-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55151540A (en) | Method of simultaneous production of carbamic ester and formamide | |
JPS5424852A (en) | Preparation of aromatic urethane compound | |
JPS5443290A (en) | Production of copolymer | |
JPS5334716A (en) | Preparation of amide amine amphoteric surface active agent | |
JPS5422323A (en) | Preparation of urea for industrial uses | |
JPS56104839A (en) | Preparation of acetic acid and/or methyl acetate | |
JPS52139080A (en) | Preparation of 1-carbamoyluracils | |
JPS5283737A (en) | Novel carboxylic acid amide derivatives and preparation thereof | |
JPS55154950A (en) | Novel carboxylic acid amide derivative | |
JPS5742660A (en) | Preparation of formamide | |
JPS54157519A (en) | Preparation of dimethylformamide | |
JPS5424854A (en) | Preparation of aromatic urethane compound | |
JPS57144259A (en) | N-benzoyl-n'-pyridyloxyphenylurea compound and insecticide containing the same | |
JPS5390158A (en) | Denitrating method | |
JPS56161362A (en) | Anthranilic acid derivative | |
JPS56138150A (en) | Novel benzyl alcohol derivative and its preparation | |
JPS5424853A (en) | Preparation of aromatic urethane compound | |
JPS5334758A (en) | Preparation of alpha-(n-silyl-n-substituted)-carbamoylcarboxylic acid esters | |
JPS5347491A (en) | Preparation of polyester | |
JPS5353615A (en) | Preparation of beta-hydroxy-alpha-amino acids | |
JPS5363347A (en) | Substd. benzoic acid amide and process for preparing them | |
JPS52153962A (en) | Preparation of 4 (5)-formylaminoimidazole-5-(4)-carboxy amide | |
JPS51141871A (en) | Process for preparing alkylene carbonates | |
JPS57128665A (en) | 3-chloro-4-hydroxy-5-nitrophenylacetic acid amides and their preparation | |
JPS57120560A (en) | Preparation of quaternary ammonium salt monomer |