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215438-84-9

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215438-84-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 215438-84-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,4,3 and 8 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 215438-84:
(8*2)+(7*1)+(6*5)+(5*4)+(4*3)+(3*8)+(2*8)+(1*4)=129
129 % 10 = 9
So 215438-84-9 is a valid CAS Registry Number.

215438-84-9Relevant articles and documents

Sonogashira reaction using arylsulfonium salts as cross-coupling partners

Tian, Ze-Yu,Wang, Shi-Meng,Jia, Su-Jiao,Song, Hai-Xia,Zhang, Cheng-Pan

supporting information, p. 5454 - 5457 (2017/11/06)

Triarylsulfonium, alkyl- and fluoroalkyl(diaryl)-sulfonium, and aryl(dialkyl)sulfonium triflates are successfully used as a new family of cross-coupling participants in the Sonogashira reaction as aryldiazonium, diaryliodonium, and tetraphenylphosphonium salts. It was found that terminal alkynes reacted mildly with triarylsulfonium or (2,2,2-trifluoroethyl)diphenylsulfonium triflate at room temperature under Pdand Cu-cocatalysis to give the corresponding arylalkynes in up to >99% yield. This protocol represents the first use of arylsulfonium salts as cross-coupling partners in the Pd/Cu-catalyzed Sonogashira reaction.

Superacidified reaction of sulfides and esters for the direct synthesis of sulfonium derivatives

Miyatake, Kenji,Yamamoto, Kimihisa,Endo, Kazuhisa,Tsuchida, Eishun

, p. 7522 - 7524 (2007/10/03)

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