Products Description
Introduction and application of CAS:4461-33-0| BENZOYL ISOCYANATE
Purpose: Benzoyl isocyanate is an organic intermediate that can be used to prepare urea compounds. Preparation: Add 2.97g bis(trichloromethyl) carbonate and 20ml ethyl acetate to a four-necked flask equipped with a mechanical stirrer, thermometer, constant pressure dropping funnel, and reflux condenser, mix at -5~5°C and Stir. Dissolve 7.27g of benzamide in 30ml of ethyl acetate solution through a constant pressure dropping funnel, and slowly drop it into the above solution. The dropping process is at a low temperature of -5~5°C. After adding, stir for 30 minutes, slowly raise the temperature to the high temperature stage of 75~80℃, and add dropwise a solution of 2.97g bis(trichloromethyl)carbonate dissolved in 20ml ethyl acetate at this reaction temperature, for 3~3.5 hours After the addition is completed, the reaction is continued at the same temperature for 2 hours. After the reaction, the ethyl acetate is recovered, and then distilled under reduced pressure to obtain 7.93g of benzoyl isocyanate, with a yield of 89.89%.
Specification of CAS:4461-33-0| BENZOYL ISOCYANATE
Melting point 25.9°C
Boiling point 94-96°C21mmHg(lit.)
Density 1.171g/mLat25°C(lit.)
Refractive index n20/D1.5514(lit.)
Flash point 162°F
Storage conditions -20°C
form solid
Color: transparent to turbid, colorless or white
Package of CAS:4461-33-0| BENZOYL ISOCYANATE
100G/1kg/25kg drum
This product is valid for 24 months from the production date when stored in a warm sealed state.
Safety and Transportation
This product should be stored and sealed at room temperature. Customers should carefully read the product treatment, material safety data sheet (MSDS), and labels before use, be familiar with the product's safety information, operating instructions, and environmental impact, and wear appropriate personal protection as required. supplies.
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