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442160-22-7

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442160-22-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 442160-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,1,6 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 442160-22:
(8*4)+(7*4)+(6*2)+(5*1)+(4*6)+(3*0)+(2*2)+(1*2)=107
107 % 10 = 7
So 442160-22-7 is a valid CAS Registry Number.

442160-22-7Relevant articles and documents

Palladium-Catalyzed Reductive [5+1] Cycloaddition of 3-Acetoxy-1,4-enynes with CO: Access to Phenols Enabled by Hydrosilanes

Li, Jin-Heng,Luo, Shenglian,Song, Ren-Jie,Wu, Li-Jun

, p. 13308 - 13312 (2018/09/21)

A new palladium-catalyzed reductive [5+1] cycloaddition of 3-acetoxy-1,4-enynes with CO, enabled by hydrosilanes, has been developed for delivering valuable functionalized phenols. This methodology employs hydrosilanes as the external reagent to facilitate the [5+1] carbonylative benzannulation. The reaction is a conceptually and mechanistically novel carbonylative cycloaddition route for the construction of substituted phenols, through the formation of four new chemical bonds, with excellent functional-group tolerance.

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