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75230-55-6

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75230-55-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75230-55-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,3 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75230-55:
(7*7)+(6*5)+(5*2)+(4*3)+(3*0)+(2*5)+(1*5)=116
116 % 10 = 6
So 75230-55-6 is a valid CAS Registry Number.

75230-55-6Relevant articles and documents

Ru(ii)-Catalyzed, Cu(ii)-mediated carbene migratory insertion in the synthesis of trisubstituted pyrroles from isoxazoles

Kumar, Pravin,Keshri, Santosh Kumar,Kapur, Manmohan

supporting information, p. 3428 - 3433 (2021/05/03)

A convenient, “one-pot” synthesis of trisubstituted pyrrolesviaa Ru(ii)-catalyzed, Cu(ii)-mediated reaction of substituted isoxazoles with sulfonylhydrazones has been developed. A series of highly functionalized pyrroles are obtainedviaa synergistic forma

Copper-catalyzed one-pot coupling reactions of aldehydes (ketones), tosylhydrazide and 2-amino(benzo)thiazoles: An efficient strategy for the synthesis of N-alkylated (benzo)thiazoles

Xie, Zengyang,Chen, Ruijiao,Ma, Mingfang,Kong, Lingdong,Liu, Jun,Wang, Cunde

, (2019/08/16)

An efficient and practical C–N bond formation methodology for the synthesis of N-alkylated (benzo)thiazoles was developed, via the copper-catalyzed one-pot two-step reactions of 2-amino(benzo)thiazoles and aldehydes (ketones) with tosylhydrazide. This cross-coupling reaction proceeded smoothly and tolerated a broad range of functional groups (46 examples). A variety of functionalized N-alkylated (benzo)thiazoles were obtained in moderate to high yields. Notably, gram-scale synthesis of fanetizole (anti-inflammatory drug) was also realized through this protocol.

Copper-Catalyzed Reductive N-Alkylation of Amides with N-Tosylhydrazones Derived from Ketones

Xu, Peng,Qi, Fu-Ling,Han, Fu-She,Wang, Yan-Hua

supporting information, p. 2030 - 2034 (2016/07/28)

A CuI-catalyzed reductive coupling of ketone-derived N-tosylhydrazones with amides is presented. Under the optimized conditions, an array of N-tosylhydrazones derived from aryl–alkyl and diaryl ketones could couple effectively with a wide variety of (hete

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