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32374-87-1

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32374-87-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 32374-87-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,3,7 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 32374-87:
(7*3)+(6*2)+(5*3)+(4*7)+(3*4)+(2*8)+(1*7)=111
111 % 10 = 1
So 32374-87-1 is a valid CAS Registry Number.

32374-87-1Downstream Products

32374-87-1Relevant articles and documents

Amine-effected cyclization of chalcone dihalides to aurones

Donnelly, John A.,Emerson, Geraldine M.

, p. 7227 - 7236 (2007/10/02)

The possibility of employing the amine-catalysed cyclization of αβ-dibromodihydrochalcones and α-bromochalcones as a general synthesis of aurones was studied using cyclohexylamine and the most representative member of each class of these αβ-disubstituted ketones and α-halogeno chalcones. Overall yields of heterocyclic products were generally poor except from 4′6′-dimethoxy- and 3-nitro-substituted chalcone systems; aurones were obtained in fair yield from the former and in excellent yield from the latter. 22′-Diacetoxychalcone dibromide and 22′-diacetoxy-α-bromochalcone cyclised to a 2-benzoylbenzofuran to the exclusion of the corresponding aurone and flavone.

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