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25022-97-3

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25022-97-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25022-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,0,2 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 25022-97:
(7*2)+(6*5)+(5*0)+(4*2)+(3*2)+(2*9)+(1*7)=83
83 % 10 = 3
So 25022-97-3 is a valid CAS Registry Number.

25022-97-3Downstream Products

25022-97-3Relevant articles and documents

Reagents and methods for esterification

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Page/Page column 14; 20, (2020/03/18)

A method for esterification of one or more carboxylic acid groups in a compound containing one or more carboxylic acid groups wherein the esterification reagent is a diazo-compound of formula: wherein the R1 and R2 groups of the diazo compound are selected such that the corresponding organic compound of formula: exhibits a —C—H pKa value between 18 and 29 as measured in DMSO. Specific reagents and methods for esterification are provided. The esterification reagents provided exhibit high selectivity for esterification of carboxylic acid groups over reaction with amine, alcohol or thiol groups in the compound containing one or more carboxylic acid groups. The method can be used to selectively esterify carboxylic acid groups in peptides or proteins.

Copper-catalyzed benzylic oxidation of C(sp3)-H bonds

Zhang, Bo,Zhu, Shou-Fei,Zhou, Qi-Lin

supporting information, p. 2033 - 2037 (2013/03/13)

A selective oxidation of benzylic C(sp3)-H bonds to C(sp 3)-O bonds catalyzed by copper complexes of quinoline-imine ligands was developed with peresters as oxidants under mild reaction conditions, which converted benzylic methylenes directly into benzylic alcohols and esters by means of direct C-H bond functionalization.

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