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121077-49-4

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121077-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121077-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,0,7 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121077-49:
(8*1)+(7*2)+(6*1)+(5*0)+(4*7)+(3*7)+(2*4)+(1*9)=94
94 % 10 = 4
So 121077-49-4 is a valid CAS Registry Number.

121077-49-4Downstream Products

121077-49-4Relevant articles and documents

AgAsF6 as safe alternative to AgClO4 for generating cationic zirconocene species: Utilities in Lewis acid-promoted selective C---C bond forming reactions

Suzuki, Keisuke,Hasegawa, Takayuki,Imai, Takahiro,Maeta, Hideki,Ohba, Shigeru

, p. 4483 - 4494 (2007/10/02)

For generating cationic zirconocene species that are useful for organic synthesis, AgAsF6 proved to be an efficient catalyst that serves as a safe alternative to AgClO4. Scope and limitation is discussed on this new catalyst in the processes including (1) alkyl/alkenyl transfer reaction from organozirconocene chloride to aldehyde, (2) two- and four-carbon homologation of aldehyde, (3) dual synthetic methods of 1,3-dienes from aldehydes/ketones via 1,3-bimetallic species, and (4) three-component alkylative cycloaddition via o-quinodimethane species.

Synthesis of polyconjugated aldehydes using a new Horner--Wadsworth--Emmons reagent.

Rein,Akermark,Helquist

, p. 569 - 572 (2007/10/02)

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