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22452-72-8

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22452-72-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22452-72-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,4,5 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 22452-72:
(7*2)+(6*2)+(5*4)+(4*5)+(3*2)+(2*7)+(1*2)=88
88 % 10 = 8
So 22452-72-8 is a valid CAS Registry Number.

22452-72-8Upstream product

22452-72-8Relevant articles and documents

Copper(II)-Catalyzed Single-Step Synthesis of Aryl Thiols from Aryl Halides and 1,2-Ethanedithiol

Liu, Yajun,Kim, Jihye,Seo, Heesun,Park, Sunghyouk,Chae, Junghyun

, p. 2205 - 2212 (2015)

A highly efficient transition metal-catalyzed single-step synthesis of aryl thiols from aryl halides has been developed employing copper(II) catalyst and 1,2-ethanedithiol. The key features are use of readily available reagents, a simple operation, and relatively mild reaction conditions. This new protocol shows a broad substrate scope with excellent functional group compatibility. A variety of aryl thiols are directly prepared from aryl halides in high yields. Furthermore, the aryl thiols are used in situ for the synthesis of more advanced molecules such as diaryl sulfides and benzothiophenes.

3-Mercaptopropionic Acid: A New Tool in the Synthesis of Symmetrical Diaryl Sulfides from Unactivated Aryl Iodides as Substitute for Anhydrous Sodium Sulfide

Rabai, Jozsef

, p. 523 - 525 (2007/10/02)

A series of symmetrical diaryl sulfides has been prepared by the copper-catalyzed reaction of 3-mercaptopropionic acid with unactivated aryl iodides.The yields are comparable with those obtained using anhydrous sodium sulfide under optimized reaction conditions.

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