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77920-99-1

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77920-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77920-99-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,2 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77920-99:
(7*7)+(6*7)+(5*9)+(4*2)+(3*0)+(2*9)+(1*9)=171
171 % 10 = 1
So 77920-99-1 is a valid CAS Registry Number.

77920-99-1Relevant articles and documents

Iridium-catalyzed asymmetric isomerization of primary allylic alcohols

Mantilli, Luca,Gerard, David,Torche, Sonya,Besnard, Celine,Mazet, Clement

, p. 5143 - 5147 (2009)

Nothing to sm(Ir)k at: Under appropriate reaction conditions, iridium hydride catalysts promote the isomerization of primary allylic alcohols. The best catalysts, like (R)-1 (P green, O red, N blue, Ir yellow), deliver the desired chiral aldehydes with excellent enantioselectivity and good yields. Mechanistic hypotheses have been developed on the basis of preliminary investigations.

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