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1238286-47-9

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1238286-47-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238286-47-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,2,8 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1238286-47:
(9*1)+(8*2)+(7*3)+(6*8)+(5*2)+(4*8)+(3*6)+(2*4)+(1*7)=169
169 % 10 = 9
So 1238286-47-9 is a valid CAS Registry Number.

1238286-47-9Downstream Products

1238286-47-9Relevant articles and documents

Copper-catalyzed multicomponent reaction: Synthesis of 4-arylsulfonylimino- 4,5-dihydrofuran derivatives

Shang, Yongjia,Ju, Kai,He, Xinwei,Hu, Jinsong,Yu, Shuyan,Zhang, Min,Liao, Kaisheng,Wang, Lifen,Zhang, Ping

supporting information; experimental part, p. 5743 - 5745 (2010/10/20)

A series of 4-arylsulfonylimino-4,5-dihydrofurans (14 examples) were efficiently synthesized in good to excellent yields by using the copper-catalyzed three-component reaction between sulfonyl azides, phenylacetylene, and β-ketoesters in tetrahydrofuran (THF) at 40 °C for 8 h in the presence of triethylamine (TEA). A plausible mechanism for this process is proposed.

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