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444169-52-2

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444169-52-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 444169-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,1,6 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 444169-52:
(8*4)+(7*4)+(6*4)+(5*1)+(4*6)+(3*9)+(2*5)+(1*2)=152
152 % 10 = 2
So 444169-52-2 is a valid CAS Registry Number.

444169-52-2Relevant articles and documents

Electrochemical esterification reaction of alkynes with diols: Via cleavage of carbon-carbon triple bonds without catalyst and oxidant

Cheng, Hui-Hui,Gao, Hui,Li, Pin-Hua,Shen, Hui-Zhi,Wang, Pei-Long

supporting information, p. 6783 - 6791 (2020/11/09)

A novel electrochemical esterification of alkynes for the synthesis of esters was developed in which diols and their derivatives were used as the partners. This method is green as it is catalyst-free, oxidant-free, and additive-free and shows atom-economy. This is the first example of an electrochemical reaction via cleavage of carbon-carbon triple bonds. Meanwhile, this is also the first example of a carbon-carbon triple bond cleavage reaction of alkynes with diols. This journal is

Oxidation of acetals by dimethyldioxirane

Baumstark,Kovac, Franci,Vasquez, Pedro C.

, p. 9 - 12 (2007/10/03)

Kinetic data (k2's, LFER and activation parameters) for the oxidation of a series of acetals by dimethyldioxirane to the corresponding esters in dried acetone are reported; the results are consistent with either a H-atom abstraction or direct insertion mechanism.

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