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101688-51-1

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101688-51-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 101688-51-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,6,8 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 101688-51:
(8*1)+(7*0)+(6*1)+(5*6)+(4*8)+(3*8)+(2*5)+(1*1)=111
111 % 10 = 1
So 101688-51-1 is a valid CAS Registry Number.

101688-51-1Relevant articles and documents

LACTAMS OF ACETALS AND ACID AMIDES. 45. SYNTHESIS OF CONDENSED 2-PYRIDONES FROM ACTIVATED AMIDES, LACTAMS, AND LACTONES

Ershov, L. V.,Granik, V. G.

, p. 771 - 774 (2007/10/02)

By reaction of lactim ethers with N-substituted cyanoacetamides, the corresponding enaminoamides were obtained, cyclization of which by dimethylformamide acetal gave derivatives of pyrrolopyridine, 1,6-naphthyridine, and pyridoazepine, having a substituent at the nitrogen atom of the pyridone ring.N-substituted furopyridines were synthesized from the diethyl acetals of butyrolactone and 3-(dimethylaminomethylene)butyrolactone and dimethylformamide acetal.

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