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4916-22-7

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4916-22-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4916-22-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,1 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4916-22:
(6*4)+(5*9)+(4*1)+(3*6)+(2*2)+(1*2)=97
97 % 10 = 7
So 4916-22-7 is a valid CAS Registry Number.

4916-22-7Relevant articles and documents

Facile one-pot multicomponent synthesis of highly functionalized tetrahydropyridines using thiamine hydrochloride as an organocatalyst

Singh, Sandeep,Gupta, Annah,Kapoor, Kamal K.

supporting information, p. 1056 - 1063 (2020/03/04)

Thiamine hydrochloride (VitB1) has been found to be an efficient catalyst for the multicomponent synthesis of highly functionalized tetrahydropyridines from the reaction of β-ketoester, aromatic aldehydes and anilines. VitB1 is easily available, cheap, and eco benign.

Multicomponent reaction for the synthesis of highly functionalized piperidine scaffolds catalyzed by TMSI

Wu, Lisha,Yan, Shiqiang,Wang, Wensheng,Li, Yinta

, p. 4311 - 4322 (2020/07/13)

An efficient method for the synthesis of highly functionalized piperidines via one-pot domino reaction of β-ketoesters, aromatic aldehydes, and aromatic amines was reported. This multicomponent coupling was catalyzed by TMSI in methanol at room temperature, giving desired substituted pyridines in moderate to good yields.

A simple route towards the synthesis of 1,4,5-trisubstituted 1,2,3-triazoles from primary amines and 1,3-dicarbonyl compounds under metal-free conditions

Guo, Ningxin,Liu, Xiufen,Xu, Hongyan,Zhou, Xi,Zhao, Huaiqing

supporting information, p. 6148 - 6152 (2019/07/03)

An acetic acid-promoted approach that enables the synthesis of 1,4,5-trisubstituted 1,2,3-triazole derivatives has been achieved. This transformation employs readily available primary amines, 1,3-dicarbonyls and tosyl azide as the starting materials via a

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