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1416254-49-3

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1416254-49-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1416254-49-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,6,2,5 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1416254-49:
(9*1)+(8*4)+(7*1)+(6*6)+(5*2)+(4*5)+(3*4)+(2*4)+(1*9)=143
143 % 10 = 3
So 1416254-49-3 is a valid CAS Registry Number.

1416254-49-3Downstream Products

1416254-49-3Relevant articles and documents

Proton-exchanged montmorillonite-mediated reactions of methoxybenzyl esters and ethers

Chen, Dongyin,Xu, Chang,Deng, Jie,Jiang, Chunhuan,Wen, Xiaoan,Kong, Lingyi,Zhang, Ji,Sun, Hongbin

, p. 1975 - 1983 (2014/03/21)

Proton-exchanged montmorillonite (H-mont) was found to be an eco-friendly and cost-effective catalyst for the generation of O-methylated quinone methides (QM) from the corresponding p or o-methoxybenzyl esters and ethers. Nucleophilic trapping of the O-methylated QM with arenes, alcohols, 1,3-dicarbonyl compounds, silyl enol ethers, and allylsilanes has been carried out, respectively, leading to eco-friendly benzylation reactions. Using this protocol, H-mont-mediated deprotection of PMB-protected esters and ethers have been realized for the first time. This work would pave the way for further exploration in O-alkylated QM that are of chemical and biological significance.

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