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557774-93-3

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557774-93-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 557774-93-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,7,7 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 557774-93:
(8*5)+(7*5)+(6*7)+(5*7)+(4*7)+(3*4)+(2*9)+(1*3)=213
213 % 10 = 3
So 557774-93-3 is a valid CAS Registry Number.

557774-93-3Downstream Products

557774-93-3Relevant articles and documents

Palladium-catalyzed stereoselective synthesis of E- and Z-1,1-diaryl or triarylolefins

Liron, Frédéric,Gervais, Marina,Peyrat, Jean-Fran?ois,Alami, Mouad,Brion, Jean-Daniel

, p. 2789 - 2794 (2007/10/03)

A stereoselective and flexible synthesis of various E- and Z-1,1-diaryl and triarylolefins 3 was achieved from readily available vinylstannanes 1 via stereospecific iodo-destannylation and subsequent palladium-catalyzed Negishi-type cross-coupling reaction with arylzinc reagents under mild conditions.

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