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223-47-2

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223-47-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 223-47-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,2 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 223-47:
(5*2)+(4*2)+(3*3)+(2*4)+(1*7)=42
42 % 10 = 2
So 223-47-2 is a valid CAS Registry Number.

223-47-2Downstream Products

223-47-2Relevant articles and documents

Synthetic Utility of Arylmethylsulfones: Annulative π-Extension of Aromatics and Hetero-aromatics Involving Pd(0)-Catalyzed Heck Coupling Reactions

Sankar, Elumalai,Raju, Potharaju,Karunakaran, Jayachandran,Mohanakrishnan, Arasambattu K.

, p. 13583 - 13593 (2017)

A straightforward and general method for the synthesis of annulated thiophene, dibenzothiophene, and carbazoles analogues has been achieved involving alkylation of 2-bromo-1-(phenylsulfonylmethyl)arene/heteroarene with arylmethyl bromides/heteroarylmethyl bromides using t-BuOK as a base in DMF, followed by Pd(0)-mediated intramolecular Heck coupling in the presence of K2CO3 in DMF at 80-140 °C. The attractive feature of this protocol is that a wide variety of π-conjugated heterocycles could be readily accessed by an appropriate choice of arylmethylsulfones and benzylic bromides.

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