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78584-60-8

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78584-60-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78584-60-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,5,8 and 4 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 78584-60:
(7*7)+(6*8)+(5*5)+(4*8)+(3*4)+(2*6)+(1*0)=178
178 % 10 = 8
So 78584-60-8 is a valid CAS Registry Number.

78584-60-8Relevant articles and documents

Reinvestigation of the Stevens Rearrangement of 1-Benzyl-1,3,4-trimethyl-1,2,5,6-tetrahydropyridinium Salts II. Synthesis of 2-Aryl-3-isopropenyl-1,3-dimethylpyrrolidines

Bosh, Joan,Rubiralta, Mario

, p. 485 - 494 (2007/10/02)

cis-2-Aryl-3-isopropenyl-1,3-dimethylpyrrolidines IIa and IIb have been synthesized by an unambiguous way, thus confirming the structure of the methylene derivatives obtained as by-products in the Stevens rearrangement of 1-benzyl-1,3,4-trimethyl-1,2,5,6-tetrahydropyridinium salts Ia and Ib.The synthesis is based on the acid-induced intramolecular cyclization between an iminium salt and the α-position of a ketal group.Thus, condensation between amino ketal XXI, prepared via Gabriel synthesis from 5-chloro-3-methyl-2-pentanone, and the appropriate aldehyde afforded imines XXI.Their treatment with dry hydrogen chloride followed by acid hydrolysis and methylation gave 3-acetylpyrrolidines IV, which were transformed into the isopropenyl derivatives II by reaction with methyl-lithium and further dehydration.

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