Claims
- 1. In a process for the production of S-isopropyl-1-(5-ethyl-2-methylpiperidine carbothioate) by reaction of isomeric mixtures of cis- and trans-2-methyl-5-ethylpiperidinedine with isopropyl chlorothiolformate, the improvement comprising increasing the cis isomer content of the carbothioate product with respect to the cis isomer content of the starting piperidine comprising conducting the reaction utilizing a stoichiometric excess of from about 50% to about 300% of 2-methyl-5-ethylpiperidine with respect to isopropyl chlorothiolformate at a temperature below room temperature and in the presence of an inert diluent.
- 2. A process according to claim 1 in which the temperature is between about -5.degree. C. and -10.degree. C.
Parent Case Info
This is a division of application Ser. No. 617,908 filed Sept. 29, 1975, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3066020 |
Tilles et al. |
Nov 1962 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
1,236,875 |
Jun 1971 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
617908 |
Sep 1975 |
|