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1448311-40-7

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1448311-40-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1448311-40-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,8,3,1 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1448311-40:
(9*1)+(8*4)+(7*4)+(6*8)+(5*3)+(4*1)+(3*1)+(2*4)+(1*0)=147
147 % 10 = 7
So 1448311-40-7 is a valid CAS Registry Number.

1448311-40-7Downstream Products

1448311-40-7Relevant articles and documents

Palladium-Catalyzed Cross-Coupling of 4-Tosyloxyquinazolines with Organoindium Reagents: An Efficient Route to 4-Substituted Quinazolines

Ye, Xinglin,Yuan, Jianjun,Zhou, Yirong,Deng, Zhihong,Mao, Xuechun,Peng, Yiyuan

, p. 3976 - 3984 (2016/11/11)

An efficient route to 4-substituted quinazolines by arylation or alkylation of quinazolinones under mild conditions is described. 4-Tosyloxyquinazolines were obtained through the reaction of quinazolinones and p-methylbenzenesulfonyl chloride in the presence of K2CO3. The cross-coupling reaction of 4-tosyloxyquinazolines with organoindium reagents, carried out in tetrahydrofuran, catalyzed by Pd2(dba)3/ (2-furyl)3P led to the formation of 4-functionalized quinazolines in good to excellent yields. Higher yields were obtained by the one-pot reaction of quinazolinone, p-methylbenzenesulfonyl chloride, Pd2(dba)3-/(2-furyl)3P, and organoindium reagent. These methods using organoindium compounds as coupling partners provided an efficient route to 4-(hetero)aryl/alkylquinazolines, especially 4-substituted quinazolines bearing a halogen scaffold.

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