Preparation and application of 2,5-dichlorophenylhydrazine hydrochloride_Kain Industrial Additive
Background and overview[1][2] 2,5-Dichlorophenylhydrazine hydrochloride is an organic chemical substance that can be used as an organic intermediate. Preparation[1] Under nitrogen protection, add concentrated hydrochloric acid (120 ml, 32%, 1.2 moles) into a 500ml bottle, then lower the temperature to -2 to 0°C and stir at low temperature. Then 2,5-dichloroaniline (20 g, 123 mmoles) was…
Preparation and application of 2,4-dichloro-6-nitrophenol_Kain Industrial Additive
Background and overview[1] 2,4-Dichloro-6-nitrophenol can be used as a pharmaceutical synthesis intermediate. For example, it can be used to prepare Oxyclozanide, also known as Oxyclozanide, Oxyclozanide and Oxyclozanide. It is a halogenated salicylanilide compound and a salicylanilide anthelmintic. Drug, currently mainly used to treat and control trematodes in cattle, sheep and other animals. Similar to…
Preparation and application of 2,3,6,7,10,11-hexahydroxytriphenyl_Kain Industrial Additive
Background and overview[1-2] 2,3,6,7,10,11-Hexahydroxytriphenyl, referred to as HHHP, can be prepared from catechol in one step. There are reports in the literature that 2,3,6,7,10,11-hexahydroxytriphenyl can be used to prepare metal organic frameworks (MOFs). Metal-organic frameworks are a type of material formed by coordination between metal ions and organic ligands. Compared with traditional inorganic porous materials,…
Preparation and application of 2,3-dichlorobenzoic acid_Kain Industrial Additive
Background and overview[1-2] Haloformic acid and its derivatives are an important class of chemical and pharmaceutical intermediates, which are widely used as raw materials for the production of fungicides, insecticides, dyes and drugs. 3,5-Dichlorobenzoic acid is one of them. kind. 2,3-Dichlorobenzoic acid is a synthetic anti-epileptic drug Lamotrigine (3,5-diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine) It is also a key intermediate…
Preparation and application of 2,2′-diaminoethylene glycol diphenyl ether_Kain Industrial Additive
Background and overview[1-3] 2,2′-Diaminoethylene glycol diphenyl ether is a white crystalline powder with a melting point of 130-132°C. It is mainly used as the diazotization component for the synthesis of high-grade organic pigment yellow C.I.Pigment Yellow 180. Preparation[1-2] Report 1, A preparation method of 2,2’-diaminoethylene glycol diphenyl ether, the synthesis route is: Add 45g of…
Preparation and application of 2,3,3′,4′-biphenyltetracarboxylic dianhydride_Kain Industrial Additive
Background and overview[1] Biphenyl polyimide, as a high-performance polymer, has heat resistance, solvent resistance, radiation resistance, and good mechanical and dielectric properties. It is widely used in mechanical electronics, aerospace, large motors, turbine bearings, etc. Heat-resistant filter materials and other fields have broad application prospects. Compared with the polyimide in which 3,3′,4,4′-biphenyltetracarboxylic dianhydride (4,4′-BPDA) is…
Preparation and application of 2,6-dichloro-4-trifluorotoluidine_Kain Industrial Additive
Background and overview[1] 2,6-Dichloro-4-trifluorotoluidine is a key intermediate of the pesticide fipronil. The chemical name of fipronil is 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-trifluoromethylsulfinylpyrazole, trade name Fipronite is a highly effective insecticide developed by the French Rhône-Poulenc company from 1987 to 1989 and registered in my country in 1992. Preparation[1-2] Report 1, Preparation of 3-chloro-4-amino-5-nitrotrifluorotoluene Add 600Kg of 3,4-dichloro-5-nitrotrifluorotoluene into…
Preparation and application of 2,4,5,6-tetrafluoroisophthalonitrile_Kain Industrial Additive
Background and overview[1] 2,4,5,6-tetrafluoroisophthalonitrile can be used as a pharmaceutical synthesis intermediate, such as the preparation of dichloruron, which is an insect growth regulator, and the better representative is dichloruron. . Chemuron has the following advantages: 1. Unique mechanism of action, low toxicity to beneficial organisms, easy to degrade, high selectivity, relatively safe, and is…
