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2219-14-9

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2219-14-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2219-14-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,1 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2219-14:
(6*2)+(5*2)+(4*1)+(3*9)+(2*1)+(1*4)=59
59 % 10 = 9
So 2219-14-9 is a valid CAS Registry Number.

2219-14-9Downstream Products

2219-14-9Relevant articles and documents

Transition-Metal-Free Base-Controlled C?N Coupling Reactions: Selective Mono Versus Diarylation of Primary Amines with 2-Chlorobenzimidazoles

Sang, Wei,Gong, Yan-Yan,Cheng, Hua,Zhang, Rui,Yuan, Ye,Fan, Guang-Gao,Wang, Zhi-Qin,Chen, Cheng,Verpoort, Francis

, p. 1408 - 1416 (2021/02/01)

Herein, a base-controlled protocol was developed for the C?N coupling of primary amines and 2-chlorobenzimidazoles, affording a handful of secondary or tertiary amines in a selective fashion. Moreover, this protocol was realized under transition-metal-fre

Highly effective procedure for introduction of amino group into the 2-position of imidazole ring

Kawasaki, Ikuo,Taguchi, Norio,Yoneda, Youko,Yamashita, Masayuki,Ohta, Shunsaku

, p. 1375 - 1379 (2007/10/03)

Procedures for the preparation of 2-amino- and 2-arylaminobenzimidazoles were developed, and one of the efficient procedure was applied to the synthesis of preclathridine A, a marine imidazole alkaloid isolated from a sponge.

Photochemical Elimination of Molecular Nitrogen from Phenyl-Substituted 1,4-Dihydro-5-imino-5H-tetrazoles. Products of Phenyl-Substituted Tris(imino)methane Diradicals

Quast, Helmut,Fuss, Andreas,Nahr, Uwe

, p. 2164 - 2185 (2007/10/02)

The reaction of 5-(methylthio)tetrazolium salts 11 with primary amines produces the phenyl-substituted 5-iminotetrazoles 7b - h.In contrast to the results of the electron impact-induced fragmentation in the mass spectrometer, irradiation of the 5-iminotet

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