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893752-56-2

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893752-56-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 893752-56-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,3,7,5 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 893752-56:
(8*8)+(7*9)+(6*3)+(5*7)+(4*5)+(3*2)+(2*5)+(1*6)=222
222 % 10 = 2
So 893752-56-2 is a valid CAS Registry Number.

893752-56-2Relevant articles and documents

Stereoselective synthesis of 9-vinyl substituted unsymmetrical xanthenes and thioxanthenes

Prajapati, Anamika,Kumar, Mahendra,Thakuria, Ranjit,Basak, Ashok K.

supporting information, (2020/08/19)

Activated 2°-allylic alcohols derived from 2-aryloxybenzaldehydes and 2-(arythio)benzaldehydes undergo intramolecular Friedel-Crafts alkylation reaction when heated with catalytic amount of a Lewis acid in 1,2-dichloroethane to provide highly E-selective 9-vinyl substituted unsymmetrical novel xanthenes and thioxanthenes in good yields.

Tert -Butoxide mediated cascade desulfonylation/arylation/hydrolysis of cyclic sulfonyimines using diaryliodonium salts: Synthesis of diaryl ether derivatives bearing a 2-aldehyde group

Qian, Xiaofei,Han, Jianwei,Wang, Limin

, p. 89234 - 89237 (2016/10/03)

Cascades of cyclic sulfonyimines mediated by tBuOK with diaryliodonium salts has been developed, giving the diaryl ethers in good yields. Furthermore, bulky ortho-substituted diaryl ethers with an aldehyde group can be obtained easily in comparision with metal-catalyzed protocols.

Cross dehydrogenative coupling via base-promoted homolytic aromatic substitution (BHAS): Synthesis of fluorenones and xanthones

Wertz, Sebastian,Leifert, Dirk,Studer, Armido

supporting information, p. 928 - 931 (2013/03/28)

Cross dehydrogenative coupling reactions occurring via base-promoted homolytic aromatic substitutions (BHASs) are reported. Fluorenones and xanthones are readily prepared via CDC starting with readily available ortho-formyl biphenyls and ortho-formyl biphenylethers, respectively. The commercially available and cheap tBuOOH is used as an oxidant. Initiation of the radical chain reaction is best achieved with small amounts of FeCp2 (0.1 or 1 mol %).

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