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874291-97-1

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874291-97-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 874291-97-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,2,9 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 874291-97:
(8*8)+(7*7)+(6*4)+(5*2)+(4*9)+(3*1)+(2*9)+(1*7)=211
211 % 10 = 1
So 874291-97-1 is a valid CAS Registry Number.

874291-97-1Relevant articles and documents

Direct monoalkylation of alkyl phosphinates to access H-phosphinic acid esters

Abrunhosa-Thomas, Isabelle,Ribiere, Patrice,Adcock, Alicia C.,Montchamp, Jean-Luc

, p. 325 - 331 (2007/10/03)

Simple alkyl phosphinates prepared by the silicate esterification method can be alkylated under Barbier-like conditions with butyl lithium at -78 °C followed by warming to room temperature. The method is limited to the more reactive electrophile such as allylic bromides and alkyl iodides. With these electrophiles good yields of H-phosphinic acid esters are generally obtained in a straightforward manner. Georg Thieme Verlag Stuttgart.

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