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5942-30-3

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5942-30-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5942-30-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,9,4 and 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 5942-30:
(6*5)+(5*9)+(4*4)+(3*2)+(2*3)+(1*0)=103
103 % 10 = 3
So 5942-30-3 is a valid CAS Registry Number.

5942-30-3Relevant articles and documents

First total synthesis of mariamide A

Xia, Yamu,Chen, Chenglong,Li, Mengying,Zhou, Weizeng,Sun, Shuyu,Chu, Shanpeng,Wang, Hui

, p. 114 - 120 (2019/12/12)

Mariamide A, a lignanamide isolated from the seeds of Silybum marianum, has demonstrated potential utility as an antioxidant and antidiabetic agent and possesses an 8-O-4′ neolignan skeleton. Herein, a first total synthesis of mariamide A is presented that proceeds in nine steps using vanillin as the starting material. The key steps for the preparation of mariamide A involve an I2-catalyzed bromomethoxylation of an alkene group, a nucleophilic substitution followed by a sequential elimination and a monoacylation reaction.

A One-Step Conversion of p-Methoxybenzyl Ethers into Methoxymethyl Ethers by the Action of Dimethoxymethane in the Presence of Tin(II) Bromide and Bromomethyl Methyl Ether

Oriyama, Takeshi,Kimura, Mikio,Koga, Gen

, p. 885 - 887 (2007/10/02)

The combined use of dimethoxymethane with catalytic amounts of tin(II) bromide and bromomethyl methyl ether cleaves p-methoxybenzyl ethers to give methoxymethyl ethers in good yields.The chemoselective conversion of p-methoxybenzyl ethers in the presence of the benzyl ether function into methoxymethyl ethers has also occurred successfully.

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