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4-tolyl-4-aza-tricyclo[5.2.1.0(2,6)]dec-8-ene-3,5-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

72657-45-5

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72657-45-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72657-45-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,6,5 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72657-45:
(7*7)+(6*2)+(5*6)+(4*5)+(3*7)+(2*4)+(1*5)=145
145 % 10 = 5
So 72657-45-5 is a valid CAS Registry Number.

72657-45-5Downstream Products

72657-45-5Relevant academic research and scientific papers

Mechanochemical Diels-Alder cycloaddition reactions for straightforward synthesis of endo-norbornene derivatives

Zhang, Ze,Peng, Zhi-Wei,Hao, Ming-Feng,Gao, Jian-Gang

, p. 2895 - 2898 (2010)

Under mechanochemical milling conditions, Diels-Alder cycloaddition of cyclopentadiene with maleic anhydride and maleimide derivatives proceeded very smoothly, affording endo-norbornenes exclusively in quantitative yield. All the transformations were accomplished at room temperature without using any catalyst or organic solvent, thus the workup and purification procedure is very simple. Control experiments on traditional and other tentative conditions were also investigated. Georg Thieme Verlag Stuttgart - New York.

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