TOSLab is engaged in development of different
chemical processes:
- scaling of laboratory procedures to chemical plant production;
- development of methods for controlling the processes;
- elaboration of methods of express analyses of intermediate and final products
Among the projects successfully accomplished by TOSLab are:
Thidazuron (Dropp)
4-Nitro-1H-Imidazole-5-Carboxylic Acid
4-Cyano-2-Fluoro Benzoic Acid
N-Phenyl-N'-1,2,3-Thiadiazol-5-ylurea (DROPP, cotton defoliant)
The processes were sized to pilot unit production at the Scientific Research Technological Institute of Herbicides (Ufa).
4-Nitro-1H-Imidazole-5-Carboxylic Acid
The process was developed to semi-industrial scale. An intermediate 1H-Imidazol-5-ylmethanol Copper Complex (1) was additionally made in up to 100 kg amount for testing as an electrochemical process reagent. In co-operation with Irbit Chemical Pharmaceutical Plant we synthesised 10 kg of 4-Nitro-1H-Imidazole-5-Carboxylic Acid (2), an important parent substance for numerous biologically active imidazoles.
The process including several preliminary stages and purification of intermediate and final products was realised in a scale from several hundreds of kilograms at the earlier stages to give several kilograms of very pure (>97%) 4-Cyano-2-Fluoro-Benzoic Acid at Irbit Chemical Pharmaceutical Plant.