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1293990-77-8

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1293990-77-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1293990-77-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,3,9,9 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1293990-77:
(9*1)+(8*2)+(7*9)+(6*3)+(5*9)+(4*9)+(3*0)+(2*7)+(1*7)=208
208 % 10 = 8
So 1293990-77-8 is a valid CAS Registry Number.

1293990-77-8Relevant articles and documents

Synthesis of isoquinolone via rhodium(III)-catalyzed C-H activation with 1,4,2-dioxazol-5-ones as oxidizing directing group

Zhu, Huajian,Zhuang, Rangxiao,Zheng, Wenya,Fu, Liping,Zhao, Yuanke,Tu, Luping,Chai, Yitao,Zeng, Linghui,Zhang, Chong,Zhang, Jiankang

, p. 3108 - 3112 (2019/05/08)

An efficient rhodium-catalyzed direct C-H activation for the synthesis of isoquinolone with 1,4,2-dioxazol-5-ones as oxidizing directing groups have been developed, which featured mild reaction conditions, short reaction time and satisfactory yield.

Palladium-Catalyzed Inert C?H Bond Activation and Cyclocarbonylation of Isoquinolones with Carbon Dioxide Leading to Isoindolo[2,1-b]isoquinoline-5,7-Diones

Yan, Kelu,Jin, Junbin,Kong, Yong,Li, Bin,Wang, Baiquan

supporting information, p. 3080 - 3085 (2019/05/21)

A palladium-catalyzed inert C?H bond activation and cyclocarbonylation of isoquinolones leading to isoindolo[2,1-b]isoquinoline-5,7-diones under 1 atm of carbon dioxide has been developed. This transformation features high regio- and chemo-selectivity, step-economy, and good functional group tolerance. Most of the corresponding products were obtained in moderate to good yields. It offers an alternative approach for the synthesis of useful diverse isoindolo[2,1-b]isoquinoline-5,7-dione derivatives. (Figure presented.).

Direct access to cobaltacycles via C-H activation: N-chloroamide- enabled room-temperature synthesis of heterocycles

Yu, Xiaolong,Chen, Kehao,Guo, Shan,Shi, Pengfei,Song, Chao,Zhu, Jin

, p. 5348 - 5351 (2017/11/07)

Cobaltacycle synthesis via C-H activation has been achieved for the first time, providing key mechanistic insight into cobalt catalytic chemistry. NChloroamides are used as a directing synthon for cobalt-catalyzed roomtemperature C-H activation and construction of heterocycles. Alkynes as coupling partners allow convenient access to isoquinolones, a class of synthetically and pharmaceutically important compounds. The broad substrate scope enables a diverse range of substitution patterns to be incorporated into the heterocyclic scaffold.

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