Cas 331731-80-7,N-[2-(1-benzenesulfonyl-1H-imidazol-4-yl)-ethyl]-N-prop-2-ynyl-benzenesulfonamide

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Check Digit Verification of cas no

The CAS Registry Mumber 331731-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,7,3 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 331731-80:
(8*3)+(7*3)+(6*1)+(5*7)+(4*3)+(3*1)+(2*8)+(1*0)=117
117 % 10 = 7
So 331731-80-7 is a valid CAS Registry Number.

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331731-80-7Relevant academic research and scientific papers

Palladium catalysed tandem cyclisation-anion capture. Part 7: Synthesis of derivatives of α-amino esters, nitrogen heterocycles and β-aryl/heteroaryl ethylamines via in situ generated vinylstannanes

Casaschi, Adele,Grigg, Ronald,Sansano

, p. 607 - 615 (2007/10/03)

Palladium catalysed in situ hydrostannylation of terminal alkynes containing a β-N atom affords mainly α-vinylstannanes which serve as anion capture agents in palladium catalysed cyclisation-anion capture processes leading to derivatives of α-amino esters, nitrogen heterocycles and β-aryl/heteroaryl ethylamines in good yield.

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