Cas 1258388-75-8,(Z)-(1-(buta-1,3-dienyl)cyclopropyl)benzene

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Check Digit Verification of cas no

The CAS Registry Mumber 1258388-75-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,3,8 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1258388-75:
(9*1)+(8*2)+(7*5)+(6*8)+(5*3)+(4*8)+(3*8)+(2*7)+(1*5)=198
198 % 10 = 8
So 1258388-75-8 is a valid CAS Registry Number.

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1258388-75-8Relevant academic research and scientific papers

Rh-catalyzed [7 + 1] cycloaddition of buta-1,3-dienylcyclopropanes and CO for the synthesis of cyclooctadienones

Yao, Zhong-Ke,Li, Jianjun,Yu, Zhi-Xiang

supporting information; experimental part, p. 134 - 137 (2011/03/19)

Discovering new carbon building blocks is very significant to advance transition-metal-catalyzed cycloadditions for the synthesis of various-sized ring compounds. A new seven-carbon building block from buta-1,3- dienylcyclopropanes (BDCPs) has been developed, showing that, under the catalysis of [Rh(CO)2Cl]2, BDCPs react with CO to give [7 + 1] cycloaddition products, cyclooctadienones. The present [7 + 1] reaction provides an efficient entry to the synthetically challenging eight-membered carbocyclic skeleton, which is present in many natural products of medicinal and biological significance.

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