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28615-21-6

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28615-21-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28615-21-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,6,1 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 28615-21:
(7*2)+(6*8)+(5*6)+(4*1)+(3*5)+(2*2)+(1*1)=116
116 % 10 = 6
So 28615-21-6 is a valid CAS Registry Number.

28615-21-6Downstream Products

28615-21-6Relevant articles and documents

New synthesis of aryl and heteroaryl N-acylureas via microwave-assisted palladium-catalysed carbonylation

Liptrot, David,Alcaraz, Lilian,Roberts, Bryan

supporting information; experimental part, p. 2183 - 2188 (2010/11/04)

A new, practical synthesis of aryl and heteroaryl N-acylureas has been developed via palladium-catalysed carbonylation of aryl or heteroaryl halides in the presence of urea nucleophiles. A range of reactions illustrating the wide scope of this reaction was carried out under microwave irradiation, using either carbon monoxide gas in a vessel equipped with a gas inlet adapter, or molybdenum hexacarbonyl as the carbon monoxide source in standard microwave vials. The reactions proceeded in good to excellent yields. To illustrate the usefulness of this method a one-step synthesis of the important insecticide diflubenzuron is reported.

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