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1240520-49-3

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1240520-49-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1240520-49-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,5,2 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1240520-49:
(9*1)+(8*2)+(7*4)+(6*0)+(5*5)+(4*2)+(3*0)+(2*4)+(1*9)=103
103 % 10 = 3
So 1240520-49-3 is a valid CAS Registry Number.

1240520-49-3Downstream Products

1240520-49-3Relevant articles and documents

Silver-catalyzed benzylation and allylation of tertiary alkyl bromides with organozinc reagents

Mitamura, Yukihiro,Asada, Yoshihiro,Murakami, Kei,Someya, Hidenori,Yorimitsu, Hideki,Oshima, Koichiro

, p. 1487 - 1493 (2011/07/07)

Silver salts catalyze the benzylation and allylation of tertiary alkyl bromides with organozinc reagents. The reactions create quaternary carbon centers efficiently. Treatment of gem-dibromoalkanes with benzylic or allylic zinc reagents under silver catalysis leads to dibenzylation or diallylation. The functional-group compatibility of the present reactions is wider than that of the previous reactions with Grignard reagents.

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