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872798-01-1

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872798-01-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 872798-01-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,2,7,9 and 8 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 872798-01:
(8*8)+(7*7)+(6*2)+(5*7)+(4*9)+(3*8)+(2*0)+(1*1)=221
221 % 10 = 1
So 872798-01-1 is a valid CAS Registry Number.

872798-01-1Relevant articles and documents

Transition Metal-Free Visible Light-Driven Photoredox Oxidative Annulation of Arylamidines

Shen, Zi-Chao,Yang, Pan,Tang, Yu

, p. 309 - 317 (2016/01/15)

A fast catalytic synthesis of multisubstituted quinazolines from readily available amidines via visible light-mediated oxidative C(sp3)-C(sp2) bond formation has been established. This reaction is a metal-free oxidative coupling catalyzed by a photoredox organocatalyst. The protocol features low catalyst loading (1 mol %).

Solvent/oxidant-switchable synthesis of multisubstituted quinazolines and benzimidazoles via metal-free selective oxidative annulation of arylamidines

Lin, Jian-Ping,Zhang, Feng-Hua,Long, Ya-Qiu

supporting information, p. 2822 - 2825 (2014/06/23)

A fast and simple divergent synthesis of multisubstituted quinazolines and benzimidazoles was developed from readily available amidines, via iodine(III)-promoted oxidative C(sp3)-C(sp2) and C(sp 2)-N bond formation in nonpolar and polar solvents, respectively. Further selective synthesis of quinazolines in polar solvent was realized by TEMPO-catalyzed sp3C-H/sp2C-H direct coupling of the amidine with K2S2O8 as the oxidant. No metal, base, or other additives were needed.

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