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488828-89-3

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488828-89-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 488828-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,8,8,2 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 488828-89:
(8*4)+(7*8)+(6*8)+(5*8)+(4*2)+(3*8)+(2*8)+(1*9)=233
233 % 10 = 3
So 488828-89-3 is a valid CAS Registry Number.

488828-89-3Relevant articles and documents

Catalyst-free and selective trifluoromethylative cyclization of acryloanilides using PhICF3Cl

Guo, Jia,Xu, Cong,Wang, Ling,Huang, Wanqiao,Wang, Mang

, p. 4593 - 4599 (2019)

Trifluoromethylation-triggered cyclization of alkenes provides a useful route to CF3-containing cyclic compounds. Current approaches to generate CF3-based initiators from a CF3 source require a catalyst or an activator. This work describes a catalyst-free protocol to innately produce electrophilic CF3 species from PhICF3Cl for trifluoromethylative cyclization of acryloanilides. A new domino biscyclization of dienes has been developed leading to trifluoroethylated tetrahydroindenoquinolinones with chemo- and stereo-selectivity.

Palladium-catalyzed cascade reactions of alkene-tethered carbamoyl chlorides with: N-tosyl hydrazones: Synthesis of alkene-functionalized oxindoles

Sun, Wan,Chen, Chen,Qi, Yuan,Zhao, Jinghui,Bao, Yinwei,Zhu, Bolin

supporting information, p. 8358 - 8363 (2019/09/30)

A palladium-catalyzed cascade reaction of alkene-tethered carbamoyl chlorides with N-tosyl hydrazones is described. It provided a new way to synthesize various alkene-functionalized oxindoles bearing an all-carbon quaternary center. The olefin moieties co

Iron-Promoted Construction of Indoles via Intramolecular Oxidative C-N Coupling of 2-Alkenylanilines Using Persulfate

Li, Yudong,Li, Yuehui,Luo, Shuping,Wang, Menglan,Wu, Qing-An

supporting information, p. 3085 - 3090 (2019/08/07)

Indole scaffold synthesis relies primarily on oxidative C-H amination of N-protected alkenylanilines for C-N intramolecular cyclization reactions. Herein, for the first time, without N-protection, various readily prepared 2-alkenylanilines were transformed into the desired indole products in good yields by using K 2 S 2 O 8 as oxidant in the presence of catalytic amounts of FeF 2. The K 2 S 2 O 8 /FeF 2 system offers a direct and benign synthetic route to 3-arylindoles and it is applicable to a wide range of substituted indoles including drug intermediates.

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