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874280-90-7

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874280-90-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 874280-90-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,2,8 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 874280-90:
(8*8)+(7*7)+(6*4)+(5*2)+(4*8)+(3*0)+(2*9)+(1*0)=197
197 % 10 = 7
So 874280-90-7 is a valid CAS Registry Number.

874280-90-7Downstream Products

874280-90-7Relevant articles and documents

Phosphinamide-directed benzylic lithiation. application to the synthesis of peptide building blocks

Burgos, Pascual Ona,Fernandez, Ignacio,Iglesias, Maria Jose,Garcia-Granda, Santiago,Ortiz, Fernando Lopez

, p. 537 - 540 (2008/04/05)

N-Benzyldiphenylphosphinamides are deprotonated at the NCα position diastereospecifically upon treatment with f-BuLi in diethyl ether at low temperature. The reaction of the anions with alkyl, acyl, and tin halides, aliphatic and aromatic aldehydes, and Michael acceptors allowed installation of a variety of functional groups into the benzylic arm in excellent yields. Cleavage of the P-N linkage affords 1,2-amino alcohols and α-, β-, and γ-amino acids.

Unprecedented asymmetric induction through configurationally stable lithium N-(α-methylbenzyl)phosphinamides. A new entry to enantiomerically pure γ-aminophosphinic acids and esters

Fernandez, Ignacio,Ruiz Gomez, Gloria,Alfonso, Ignacio,Iglesias, Maria J.,Lopez Ortiz, Fernando

, p. 5408 - 5410 (2007/10/03)

The first examples of configurationally stable N-benzyl-N-phosphinoyl carbanions are described. Their applications to the synthesis of homochiral γ-aminophosphinic acids and esters via highly enantioselective dearomatising reactions are shown. The Royal S

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