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4285-51-2

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4285-51-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4285-51-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,8 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4285-51:
(6*4)+(5*2)+(4*8)+(3*5)+(2*5)+(1*1)=92
92 % 10 = 2
So 4285-51-2 is a valid CAS Registry Number.

4285-51-2Relevant articles and documents

Synthesis of α-Cyano and α-Sulfonyl Cyclic Ethers via Intramolecular Reactions of Peroxides with Sulfone- And Nitrile-Stabilized Carbanions

Horn, Alissa,Dussault, Patrick H.

, p. 14611 - 14626 (2019/11/13)

The intramolecular reaction of carbon nucleophiles with oxygen-centered electrophiles has been little explored outside of nucleophilic epoxidation. We now report the synthesis of sulfonyl- and cyano-substituted oxacycles via intramolecular reaction of sul

An aryne triggered ring-opening fluorination of cyclic thioethers with potassium fluoride

Fan, Rong,Liu, Binbin,Zheng, Tianyu,Xu, Kun,Tan, Chen,Zeng, Tianlong,Su, Shuaisong,Tan, Jiajing

supporting information, p. 7081 - 7084 (2018/07/05)

Herein, we report an aryne triggered ring-opening fluorination protocol of a great variety of saturated sulfur heterocycles. A key factor for the success is the identification of a suitable mediator. Compared to previous methods, this transition-metal free protocol employs low-cost potassium fluoride as the fluorine source. The operational simplicity and mild reaction conditions allow for the rapid synthesis of a wide range of aliphatic fluoride compounds in good yields.

Regioselective Alkoxycarbonylation of Allyl Phenyl Ethers Catalyzed by Pd/dppb under Syngas Conditions

Amézquita-Valencia, Manuel,Alper, Howard

, p. 3860 - 3867 (2016/05/24)

A simple and regioselective synthesis of phenoxy esters and phenylthio esters is reported. The products are obtained by selective alkoxycarbonylation catalyzed by Pd2(dba)3, 1,4-bis(diphenylphisphino)butane (dppb), and syngas (CO/H2) in chloroform/alcohol. This methodology affords bifunctional products in good yield with excellent n-selectivity and without the need to use additives.

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