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(1R,7R)-4-chloro-9,9-dimethyl-2,2,6,6-tetra(3,5-dimethylphenyl)-3,5,8,10-tetraoxa-4-phosphabicyclo[5.3.0]decane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

840454-59-3

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840454-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 840454-59-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,0,4,5 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 840454-59:
(8*8)+(7*4)+(6*0)+(5*4)+(4*5)+(3*4)+(2*5)+(1*9)=163
163 % 10 = 3
So 840454-59-3 is a valid CAS Registry Number.

840454-59-3Relevant academic research and scientific papers

Enantioselective Ni-Al Bimetallic Catalyzed exo -Selective C-H Cyclization of Imidazoles with Alkenes

Wang, Yin-Xia,Qi, Shao-Long,Luan, Yu-Xin,Han, Xing-Wang,Wang, Shan,Chen, Hao,Ye, Mengchun

, p. 5360 - 5364 (2018/05/01)

A Ni-Al bimetallic catalyzed enantioselective C-H exo-selective cyclization of imidazoles with alkenes has been developed. A series of bi- or polycyclic imidazoles with β-stereocenter were obtained in up to 98% yield and >99% ee. The bifunctional SPO ligand-promoted bimetallic catalysis proved to be critical to this challenging stereocontrol.

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