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198218-85-8

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198218-85-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 198218-85-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,2,1 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 198218-85:
(8*1)+(7*9)+(6*8)+(5*2)+(4*1)+(3*8)+(2*8)+(1*5)=178
178 % 10 = 8
So 198218-85-8 is a valid CAS Registry Number.

198218-85-8Relevant articles and documents

Reductive Alkylation of Quinolines to N-Alkyl Tetrahydroquinolines Catalyzed by Arylboronic Acid

Adhikari, Priyanka,Bhattacharyya, Dipanjan,Nandi, Sekhar,Kancharla, Pavan K.,Das, Animesh

, p. 2437 - 2442 (2021)

A boronic acid catalyzed one-pot tandem reduction of quinolines to tetrahydroquinolines followed by reductive alkylation by the aldehyde has been demonstrated. This step-economcial synthesis of N-alkyl tetrahydroquinolines has been achieved directly from readily available quinolines, aldehydes, and Hantzsch ester under mild reaction conditions. The mechanistic study demonstrates the unique behavior of organoboron catalysts as both Lewis acids and hydrogen-bond donors.

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