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52107-75-2

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52107-75-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52107-75-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,1,0 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 52107-75:
(7*5)+(6*2)+(5*1)+(4*0)+(3*7)+(2*7)+(1*5)=92
92 % 10 = 2
So 52107-75-2 is a valid CAS Registry Number.

52107-75-2Downstream Products

52107-75-2Relevant articles and documents

Visible Light Induced Cyclization to Spirobi[indene] Skeletons from Functionalized Alkylidienecyclopropanes

Li, Quanzhe,Liu, Jiaxin,Shi, Min,Wei, Yin

, (2020/03/26)

In this paper, we revealed a metal-free and visible light photoinduced method for the rapid construction of spirobi[indene] skeletons, providing a simple and efficient way for easy access to spirobi[indene] scaffolds under mild conditions along with a broad substrate scope and good functional group tolerance.

Synthesis of Diiodinated All-Carbon 3,3′-Diphenyl-1,1′-spirobiindene Derivatives via Cascade Enyne Cyclization and Electrophilic Aromatic Substitution

Li, Quanzhe,Yu, Liuzhu,Wei, Yin,Shi, Min

, p. 9282 - 9296 (2019/08/12)

A synthetic method for the construction of diiodinated all-carbon spirobiindene derivatives has been developed from the reaction of propargyl alcohol-tethered alkylidenecyclopropanes with iodine. The reaction proceeded through an iodination-initiated cascade intramolecular enyne cyclization and electrophilic aromatic substitution reaction process in 1,2-dichloroethane upon heating, giving desired spirocyclic products in moderate to excellent yields. Further transformation of the obtained products has also been presented.

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