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69248-58-4

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69248-58-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69248-58-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,2,4 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 69248-58:
(7*6)+(6*9)+(5*2)+(4*4)+(3*8)+(2*5)+(1*8)=164
164 % 10 = 4
So 69248-58-4 is a valid CAS Registry Number.

69248-58-4Downstream Products

69248-58-4Relevant articles and documents

Domino Processes of Arynes Reacting with Three Classes of Nucleophiles for Organic Syntheses

Hwu, Jih Ru,Panja, Avijit,Gupta, Nitesh K.,Hu, Yu-Chen,Tan, Kui-Thong,Lin, Chun-Cheng,Hwang, Kuo-Chu,Hsu, Ming-Hua,Huang, Wen-Chieh,Tsay, Shwu-Chen

, p. 683 - 693 (2021/01/18)

Synthetic application of arynes is broadened by their reactions with neutral N-, S-, and O-containing nucleophiles to produce three types of compounds. Accordingly, 1,2-dihydroquinolines are synthesized from Schiff bases, alkynes, and arynes through a Diels-Alder reaction. Epoxides are prepared from thioethers and arynes along with aldehydes or ketones through a Johnson-Corey-Chaykovsky reaction. Phenolic ethers are produced from allyl ethers and arynes through a Claisen-type rearrangement. These target molecules, including natural products γ-asarone, asaricin, and a cholesteryl phenolic ether, are formed through reactions initiated by arynes. These new reactions share a prevailing feature of domino processes, which are carried out in a single flask and afford the desired products in good to high yields.

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