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104564-69-4

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104564-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104564-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,5,6 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 104564-69:
(8*1)+(7*0)+(6*4)+(5*5)+(4*6)+(3*4)+(2*6)+(1*9)=114
114 % 10 = 4
So 104564-69-4 is a valid CAS Registry Number.

104564-69-4Downstream Products

104564-69-4Relevant articles and documents

Palladium-Catalyzed Butoxycarbonylation of Polybromo(hetero)arenes: A Practical Method for the Preparation of (Hetero)arenepolycarboxylates and -carboxylic Acids

Wu, Weilong,Jing, Yongkang,Zhang, Deyi,Yan, Xianghe,Liang, Rong,Lu, Zhiqiang,Ji, Baoming

, p. 403 - 410 (2021/10/12)

The palladium-catalyzed alkoxycarbonylation of polybromo (hetero)arenes was investigated systematically. The results show that cheap and readily available in situ Pd(OAc) 2/ rac -BINAP catalyst can catalyze the butoxycarbonylation of various polybromo(hetero)arenes efficiently, and gave (hetero)arenepolycarboxylates with moderate to high yield (59-94%). Using this method, two new compounds, 4,4'-bis(butoxycarbonyl)-1,1'-bi-2-naphthol and dibutyl [2,2'-bipyrimidine]-5,5'-dicarboxylate, are reported for the first time. In addition, the gram-scale preparation of carboxylate and carboxylic acids was successful performed by butoxycarbonylation followed by hydrolysis. This shows the wide scope of substrates and practical applications of the Pd(OAc) 2/ rac -BINAP catalytic system. Moreover, these carboxylic acids and carboxylates can be used as ligands or structural units to construct MOFs, metal complexes, and COFs etc.

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