| Patent Number |
Title Of Patent |
Date Issued |
| 5534637 |
Starting materials for prepartion of sulfonylurea derivatives and process for preparing the same |
July 9, 1996 |
| The present invention relates to a novel process for preparing sulfonylurea derivatives of formula (I) in a high purity and a high yield characterized in that a sulfonylchloride of formula (V) is reacted with 2-amino-4,6-dimethoxypyrimidine of formula (VII) in the presence of a metal |
| 5525730 |
Processes for preparation of sulfonylurea derivatives |
June 11, 1996 |
| The present invention relates to a novel process for preparing sulfonylurea derivatives of formula (I) in a high purity and a high yield characterized in that a sulfonylchloride of formula (V) is reacted with 2-amino-4,6-dimethoxypyrimidine of formula (VII) in the presence of a metal |
| 5480993 |
Process for preparation of sulfonylurea derivatives and intermediates for the process and proces |
January 2, 1996 |
| The present invention relates to a novel process for preparing sulfonylurea derivatives of formula (I) in a high purity and a high yield characterized in that a sulfonylchloride of formula (V) is reacted with 2-amino-4,6-dimethoxypyrimidine of formula (VII) in the presence of a metal |
| 5468896 |
Dithiocarbazate compounds |
November 21, 1995 |
| The present invention relates to a process for preparation of 5-pyrazolemercaptan derivatives represented by the following general formula (I), which is useful for synthesis of sulfonylurea-based herbicides, and an intermediate thereof, ##STR1## wherein R.sup.1 represents hydroge |
| 5466854 |
Processes for preparation of dithiocarbazates |
November 14, 1995 |
| The present invention relates to a process for preparation of 5-pyrazolemercaptan derivatives represented by the following general formula (I), which is useful for synthesis of sulfonylurea-based herbicides, and an intermediate thereof, ##STR1## wherein R.sup.1 represents hydroge |
| 5466854 |
Processes for preparation of dithiocarbazates |
November 14, 1995 |
| The present invention relates to a process for preparation of 5-pyrazolemercaptan derivatives represented by the following general formula (I), which is useful for synthesis of sulfonylurea-based herbicides, and an intermediate thereof, ##STR1## wherein R.sup.1 represents hydroge |
| 5416220 |
Processes for preparation of 5-pyrazolemercaptan derivatives |
May 16, 1995 |
| The present invention relates to a process for preparation of 5-pyrazolemercaptan derivatives represented by the following general formula (I), which is useful for synthesis of sulfonylurea-based herbicides, and an intermediate thereof, ##STR1## wherein R.sup.1 represents hydroge |
| 5405965 |
Processes for preparation of 5-pyrazolemercaptan derivatives and intermediates thereof |
April 11, 1995 |
| The present invention relates to a process for preparation of 5-pyrazolemercaptan derivatives represented by the following general formula (I), which is useful for synthesis of sulfonyl-urea-based herbicides, and an intermediate thereof, ##STR1## wherein R.sup.1 represents hydrog |
