Title:
PRODUCTION OF ISOTHIOCYANATE COMPOUND
Document Type and Number:
Japanese Patent JP3891637
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To safely produce the subject compound useful as a synthetic raw material for pharmaceuticals, agrochemicals and chemicals or an antibacterial agent or antifungal agent in high yield by reacting a specific clithiocarbamic acid or its salt with an acid anhydride.
SOLUTION: The objective isothiocyanate compound of the formula R1-NCS is produced by reacting a dithiocarbamic acid of the formula I (R1 is a chain paraffin group, olefin group, an alkyne group, a cycloolefin group, etc.; M is H, an alkali metal or ammonium) or its salt with an acid anhydride. The other objective cliisothiocyanate compound of the formula SCN-R2-NCS is produced by reacting a compound of the formula II (R2 is a chain paraffin group, an olefin group, an alkyne group, etc.; M1 and M2 are each H, an alkali metal or ammonia). This process gives e.g. n-butyl isothiocyanate from dithiocarbamated n-butylamine or 1,6-hexamethylene diisothiocyanate from clithiocarbamated 1,6-hexamethylenediamine.
Inventors:
Koji Hara
Application Number:
JP11064297A
Publication Date:
March 14, 2007
Filing Date:
April 28, 1997
Export Citation:
Assignee:
Rengo Co., Ltd.
International Classes:
C07C331/18; C07C331/26; C07C331/28; C07C331/30; (IPC1-7): C07C331/18; C07C331/26; C07C331/28; C07C331/30
Domestic Patent References:
| JP53112815A | ||||
| JP60146868A | ||||
| JP48035250B1 | ||||
| JP6157454A | ||||
| JP60120858A | ||||
| JP6184092A | ||||
| JP56158758A |
Attorney, Agent or Firm:
Bunji Kamada
Higashio Masahiro
Torii Kazuhisa
Higashio Masahiro
Torii Kazuhisa
Previous Patent: TRANSFER METHOD FOR SEMICONDUCTOR WAFER OF SEMICONDUCTOR MANUFACTURE DEVICE
Next Patent: EXPANDING STRUCTURE
Next Patent: EXPANDING STRUCTURE