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890002-97-8

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890002-97-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 890002-97-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,0,0,0 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 890002-97:
(8*8)+(7*9)+(6*0)+(5*0)+(4*0)+(3*2)+(2*9)+(1*7)=158
158 % 10 = 8
So 890002-97-8 is a valid CAS Registry Number.

890002-97-8Downstream Products

890002-97-8Relevant articles and documents

An expedient synthesis of highly functionalized 1,3-dienes by employing cyclopropenes asC4units

Jiang, Chengzhou,Wu, Jiamin,Han, Jiabin,Chen, Kai,Qian, Yang,Zhang, Zhengyu,Jiang, Yaojia

supporting information, p. 5710 - 5713 (2021/06/16)

An efficient method has been described to synthesize dicarbonyl functionalized 1,3-dienes by cleaving the CC bond of enaminones with cyclopropenes in the presence of a rhodium catalyst. The acetate-substituted cyclopropenes are judiciously chosen as standardC4units of 1,3-diene precursors. The reactions are believed to undergo a unique cutting and insertion process, involving a CC bond cleavage of the enaminone and insertion of a newC(sp2) source with the formation of two C-C single bonds. A broad range of substrates can be used to synthesize the corresponding 1,3-dienes under very mild reaction conditions, including low catalyst-loading, ambient temperature, and a neutral reaction solvent.

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