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25725-55-7

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25725-55-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25725-55-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,7,2 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 25725-55:
(7*2)+(6*5)+(5*7)+(4*2)+(3*5)+(2*5)+(1*5)=117
117 % 10 = 7
So 25725-55-7 is a valid CAS Registry Number.

25725-55-7Relevant articles and documents

Visible-Light-Promoted [3 + 2] Cycloaddition of 2H-Azirines with Quinones: Access to Substituted Benzo[f]isoindole-4,9-diones

Wang, Lijia,Liu, Chuang,Li, Lei,Wang, Xin,Sun, Ran,Zhou, Ming-Dong,Wang, He

, p. 719 - 724 (2022/01/22)

A visible-light-promoteded [3 + 2] cycloaddition reaction of 2H-azirines with quinones has been developed under mild reaction conditions. The reaction provides a general and efficient strategy for the synthesis of the benzo[f]isoindole-4,9-diones scaffold

Photocatalytic Approach for Construction of 5,6-Dihydroimidazo[2,1- A[isoquinolines and Their Luminescent Properties

Wang, Zaibin,Li, Hanjie,Wang, Zhichao,Suleman, Muhammad,Wang, Yanguang,Lu, Ping

supporting information, p. 8101 - 8111 (2021/06/28)

A visible-light-driven photoredox reaction of tetrahydroisoquinoline with 2H-azirines is described. 4,7-Bis(4-methoxyphenyl)benzo[c][1,2,5]thiadiazole, a benzothiadiazole (BTD) derived fluorophore, is used as an organic photoredox catalyst, and the reacti

A copper-catalyzed insertion of sulfur dioxide: Via radical coupling

Zhang, Jun,Yang, Min,Liu, Jin-Biao,He, Fu-Sheng,Wu, Jie

, p. 3225 - 3228 (2020/03/23)

A copper-catalyzed three-component reaction of O-acyl oximes, DABCO·(SO2)2, and 2H-azirines under mild conditions has been achieved. This protocol provides an efficient route for the construction of various tetrasubstituted β-sulfonyl N-unprotected enamines in moderate to good yields with excellent stereoselectivity and regioselectivity. Notably, this method represents a rare example of 2H-azirines as useful synthons for β-functionalized N-unprotected enamines. Preliminary mechanistic studies indicate that the reaction proceeds through coupling of a sulfonyl radical and α-carbon radical via copper-catalyzed ring-opening C-C bond cleavage of O-acyl oxime and C-N bond cleavage of 2H-azirine with the insertion of sulfur dioxide.

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