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35416-67-2

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35416-67-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 35416-67-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,5,4,1 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 35416-67:
(7*3)+(6*5)+(5*4)+(4*1)+(3*6)+(2*6)+(1*7)=112
112 % 10 = 2
So 35416-67-2 is a valid CAS Registry Number.

35416-67-2Downstream Products

35416-67-2Relevant articles and documents

ALKYLATION OF CH ACIDS IN THE PRESENCE OF POTASSIUM CARBONATE. II. ALKYLATION OF ACETYLACETONE; ACETOACETIC ESTER; AND MALONIC ESTER WITH 1,4-DIHALOGENO-2-BUTENES

Vardapetyan, A. A.,Khachatryan, D. S.,Panosyan, G. A.,Morlyan, N. M.

, p. 2034 - 2037 (2007/10/02)

A convenient method was developed for the synthesis of derivatives of vinylcyclopropane and vinyldihydrofurane by the cycloalkylation of acetylacetone, acetoacetic ester, and malonic ester with 1,4-dihalogeno-2-butenes in the presence of potassium carbonate.The reaction of acetylacetone and acetoacetic ester with 1,4-dibromo-2,3-dimethyl-2-butene is regiospecific with the formation of the products from intramolecular O-alkylation.The isomerization of the 1-substituted 1-acyl-2-vinylcyclopropanes with the corresponding dihydrofurans is accelerated in the presence of catalytic amounts of cuprous chloride.

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