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1426677-90-8

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1426677-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1426677-90-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,6,6,7 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1426677-90:
(9*1)+(8*4)+(7*2)+(6*6)+(5*6)+(4*7)+(3*7)+(2*9)+(1*0)=188
188 % 10 = 8
So 1426677-90-8 is a valid CAS Registry Number.

1426677-90-8Relevant articles and documents

A [4+3] Cycloaddition Reaction of Aza-ortho-quinone Methides with C,N-Cyclic Azomethine Imines for Synthesis of 1,2,4-Triazepines

Wang, Xinyue,Li, Zefei,Feng, Chang,Zhen, Qi,Guo, Mingzhang,Yao, Yaning,Zou, Xinyu,Wang, Pengfei,Hou, Yunlei,Gong, Ping

supporting information, p. 2090 - 2096 (2021/09/06)

The base-induced formal [4+3] cycloaddition reaction of C,N-cyclic azomethine imines with aza-ortho-quinone methides, generated in situ, is reported. This protocol provided an efficient method for the synthesis of biologically important 1,2,4-triazepine derivatives, with a wide substrate scope and excellent functional-group tolerance, and it gives moderate to excellent yields under mild conditions. Several of the derivatives exhibited in vitro antitumor activities against the A2780 cell line in a screening of the cancer cell lines HCT-116, H2228, and A2780 by an MTT assay.

Benzoazepine-Fused Isoindolines via Intramolecular (3 + 2)-Cycloadditions of Azomethine Ylides with Dinitroarenes

Wales, Steven M.,Rivinoja, Daniel J.,Gardiner, Michael G.,Bird, Melissa J.,Meyer, Adam G.,Ryan, John H.,Hyland, Christopher J. T.

supporting information, p. 4703 - 4708 (2019/06/27)

Aminobenzaldehydes bearing a pendant 3,5-dinitrophenyl group react thermally with N-substituted α-amino acids to form unprecedented benzoazepine-fused isoindolines. The reaction proceeds via a dearomatization/rearomatization sequence involving an intramolecular (3 + 2)-cycloaddition between the in situ formed azomethine ylide and the dinitroarene. Various glycine derivatives are tolerated as well as branched substrates based on cyclic, α-mono-, and α,α-disubstituted amino acids, giving single diastereomers in many cases. The method is scalable and gives products with a nitro group ready for further manipulation.

Catalytic Asymmetric [4 + 3] Annulation of C, N-Cyclic Azomethine Imines with Copper Allenylidenes

Wang, Yanfang,Zhu, Liping,Wang, Mengran,Xiong, Jiale,Chen, Nannan,Feng, Xing,Xu, Zhaoqing,Jiang, Xianxing

supporting information, p. 6506 - 6510 (2018/10/20)

The first asymmetric decarboxylative [4 + 3] annulation of propargylic carbamates with C,N-cyclic azomethine imines has been developed successfully by a copper-N-heterocyclic carbine system. This strategy led to a series of optically active isoquinoline-f

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