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1250690-13-1

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1250690-13-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1250690-13-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,0,6,9 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1250690-13:
(9*1)+(8*2)+(7*5)+(6*0)+(5*6)+(4*9)+(3*0)+(2*1)+(1*3)=131
131 % 10 = 1
So 1250690-13-1 is a valid CAS Registry Number.

1250690-13-1Relevant articles and documents

Rh(iii)-Catalyzed three-component cascade annulation to produce theN-oxopropyl chain of isoquinolone derivatives

He, Yuan,Liao, Xian-Zhang,Dong, Lin,Chen, Fen-Er

, p. 561 - 567 (2021/02/06)

Developing powerful methods to introduce versatile functional groups at theN-substituents of isoquinolone scaffolds is still a great challenge. Herein, we report a novel three-component cascade annulation reaction to efficiently construct theN-oxopropyl chain of isoquinolone derivativesviarhodium(iii)-catalyzed C-H activation/cyclization/nucleophilic attack, with oxazoles used both as the directing group and potential functionalized reagents.

Dual H-bond activation of NHC-Au(i)-Cl complexes with amide functionalized side-arms assisted by H-bond donor substrates or acid additives

Sepp?nen, Otto,Aikonen, Santeri,Muuronen, Mikko,Alamillo-Ferrer, Carla,Burés, Jordi,Helaja, Juho

supporting information, p. 14697 - 14700 (2020/12/02)

Novel approach with amide-tethered H-bond donor NHC ligands enabled Au(i)-catalysis via H-bonding. The plain NHC-Au(i)-Cl complex catalysed conversions of terminal N-propynamides to oxazolines, and enyne cycloisomerization with an acid additive, in DCM at

Synthesis of 2,2,2-Trifluoroethyl Oxazoles, Oxazolines and Furans via Alkyne Oxytrifluoromethylation

Dong, Jia-Jia,Zhang, Song-Lin

supporting information, p. 795 - 800 (2020/01/24)

This study reports an oxytrifluoromethylation method for construction of oxazoles and furans motif and the concurrent incorporation of a 2,2,2-trifluoroethyl group at the aromatic C5-position. High-valent copper(III) trifluoromethyl compounds are crucial

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