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(S)-(-)-α-amino-1-(4-bromophenyl)methylphosphonic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

503540-13-4

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503540-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503540-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,5,4 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 503540-13:
(8*5)+(7*0)+(6*3)+(5*5)+(4*4)+(3*0)+(2*1)+(1*3)=104
104 % 10 = 4
So 503540-13-4 is a valid CAS Registry Number.

503540-13-4Downstream Products

503540-13-4Relevant academic research and scientific papers

1-(a-Aminobenzyl)-2-naphthol: A new chiral auxiliary for the synthesis of enantiopure a-aminophosphonic acids

Metlushka, Kirill E.,Kashemirov, Boris A.,Zheltukhin, Viktor F.,Sadkova, Dilyara N.,Buechner, Bernd,Hess, Christian,Kataeva, Olga N.,McKenna, Charles E.,Alfonsov, Vladimir A.

supporting information; experimental part, p. 6718 - 6722 (2010/02/28)

A new diastereoselective synthesis of a-aminophosphonates has been developed, based on the reaction, in the presence of trifluoroacetic acid, of trialkyl phosphites with chiral imines derived from (R)- or (S)-l-(ot- aminobenzyl)-2-naphthol. The reaction p

A new efficient procedure for asymmetric synthesis of α-aminophosphonic acids via addition of lithiated bis(diethylamino)phosphine borane complex to enantiopure sulfinimines

Mikolajczyk, Marian,Lyzwa, Piotr,Drabowicz, Jozef

, p. 2571 - 2576 (2007/10/03)

The addition of lithiated bis(diethylamino)phosphine borane complex to enantiopure p-toluenesulfinimines is highly diastereoselective, affording the corresponding addition products with high efficiency (yields from 72 to 100%). The addition products were readily converted into α-amino-α-arylmethylphosphonic acids with high enantiomeric purities (from 72 to >98%).

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