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923748-45-2

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923748-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 923748-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,3,7,4 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 923748-45:
(8*9)+(7*2)+(6*3)+(5*7)+(4*4)+(3*8)+(2*4)+(1*5)=192
192 % 10 = 2
So 923748-45-2 is a valid CAS Registry Number.

923748-45-2Relevant articles and documents

Direct Transformation of Alkylarenes into N-(Pyridine-2-yl)amides by C(sp3)–C(sp3) Bond Cleavage

Zhou, Haipin,Liu, Yanpeng,Xia, Haidong,Xu, Jinyi,Wang, Tingfang,Xu, Shengtao

, p. 6468 - 6473 (2020)

C(sp3)–H bond functionalization and C(sp3)–C(sp3) bond cleavage are very challenging transformations in chemistry. Herein, we report a mild and green methodology for the construction of N-(pyridine-2-yl)amides via tandem C(sp3)–H activation/C–C bond cleavage of alkylarenes. Various N-heterocyclic amides were directly synthesized from alkylarenes in water in moderate to good yields.

Ruthenium-Catalyzed Reductive Arylation of N-(2-Pyridinyl)amides with Isopropanol and Arylboronate Esters

Ronson, Thomas O.,Renders, Evelien,Van Steijvoort, Ben F.,Wang, Xubin,Wybon, Clarence C. D.,Prokopcová, Hana,Meerpoel, Lieven,Maes, Bert U. W.

, p. 482 - 487 (2019/01/04)

A new three-component reductive arylation of amides with stable reactants (iPrOH and arylboronate esters), making use of a 2-pyridinyl (Py) directing group, is described. The N-Py-amide substrates are readily prepared from carboxylic acids and PyNH2, and the resulting N-Py-1-arylalkanamine reaction products are easily transformed into the corresponding chlorides by substitution of the HN-Py group with HCl. The 1-aryl-1-chloroalkane products allow substitution and cross-coupling reactions. Therefore, a general protocol for the transformation of carboxylic acids into a variety of functionalities is obtained. The Py-NH2 by-product can be recycled.

Copper(i)-catalysed oxidative C-N coupling of 2-aminopyridine with terminal alkynes featuring a CC bond cleavage promoted by visible light

Ragupathi, Ayyakkannu,Sagadevan, Arunachalam,Lin, Chun-Cheng,Hwu, Jih-Ru,Hwang, Kuo Chu

supporting information, p. 11756 - 11759 (2016/10/07)

Facile visible-light promoted copper-catalyzed aerobic oxidative C-N coupling between 2-aminopyridine and terminal alkynes at room temperature via CC triple bond cleavage is described. This reaction allows direct synthesis of biologically important pyridy

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