5-(Aminosulfonyl)-3-chloro-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester
Ethyl 3-chloro-5-Amino sulfonyl-1-methylpyrazole-4-carboxylate
CAS: 100784-26-7
Molecular Formula: C7H10ClN3O4S
5-(Aminosulfonyl)-3-chloro-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester - Names and Identifiers
5-(Aminosulfonyl)-3-chloro-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester - Physico-chemical Properties
| Molecular Formula | C7H10ClN3O4S |
| Molar Mass | 267.69 |
| Density | 1.66 |
| Melting Point | 121-123 ºC |
| Boling Point | 475.4±55.0 °C(Predicted) |
| Flash Point | 241.299°C |
| Vapor Presure | 0mmHg at 25°C |
| pKa | 9.25±0.60(Predicted) |
| Refractive Index | 1.633 |
5-(Aminosulfonyl)-3-chloro-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester - Introduction
1. nature:
-Appearance: CAB is a white crystalline solid.
-Solubility: CAB is soluble in water, alcohols, ketones and ester solvents.
-Melting point: The melting point of CAB is about 135-138°C.
2. use:
CAB has many applications in the field of chemistry:
-Fungicide: CAB can be used as a fungicide, which has a good inhibitory effect on microorganisms.
-Soil improver: CAB can improve soil water retention and increase soil fertility.
-Synthesis of polymer compounds: CAB can be used as a reagent in polymer synthesis reactions.
3. Preparation method:
The main steps for preparing CAB are as follows:
-First, 1-methylpyrazole-4-carboxylic acid ethyl ester is reacted with carbon dichloride under basic conditions to obtain 3-chloro-1-methylpyrazole-4-carboxylic acid ethyl ester.
-Then, by reacting with sulfuryl chloride, the chlorine atom is replaced with an aminosulfonyl group to obtain the final product 3-chloro-5-aminosulfonyl-1-methylpyrazole-4-carboxylic acid ethyl ester.
4. Safety Information:
- CBA is irritating, avoid contact with skin and eyes.
-use should pay attention to protective measures to avoid inhalation of its dust or steam.
-Avoid contact with strong oxidants and acids during storage and use to avoid reaction.
-If you come into contact with CAB, rinse immediately with plenty of water and seek medical help.
Last Update：2024-04-09 21:01:54
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