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1165947-04-5

1165947-04-5

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1165947-04-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1165947-04-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,5,9,4 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1165947-04:
(9*1)+(8*1)+(7*6)+(6*5)+(5*9)+(4*4)+(3*7)+(2*0)+(1*4)=175
175 % 10 = 5
So 1165947-04-5 is a valid CAS Registry Number.

1165947-04-5Downstream Products

1165947-04-5Relevant articles and documents

Synthesis of Heteroaryl Sulfonamides from Organozinc Reagents and 2,4,6-Trichlorophenyl Chlorosulfate

Colombe, James R.,Debergh, J. Robb,Buchwald, Stephen L.

, p. 3170 - 3173 (2015)

A method for the preparation of aryl and heteroaryl sulfonamides using 2,4,6-trichlorophenyl chlorosulfate (TCPC) is described. The reaction of 2-pyridylzinc reagents with TCPC resulted in 2,4,6-trichlorophenyl (TCP) pyridine-2-sulfonates, and the parent pyridine-2-sulfonate was shown to react with amines. Less electron-rich aryl- and heteroarylzinc reagents reacted with TCPC to afford sulfonyl chlorides that were converted in situ to sulfonamides.

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