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180906-51-8

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180906-51-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 180906-51-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,9,0 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 180906-51:
(8*1)+(7*8)+(6*0)+(5*9)+(4*0)+(3*6)+(2*5)+(1*1)=138
138 % 10 = 8
So 180906-51-8 is a valid CAS Registry Number.

180906-51-8Downstream Products

180906-51-8Relevant articles and documents

Design of axially chiral dicarboxylic acid for asymmetric mannich reaction of arylaldehyde N-boc imines and diazo compounds

Hashimoto, Takuya,Maruoka, Keiji

, p. 10054 - 10055 (2007)

An axially chiral dicarboxylic acid has been prepared as a new class of chiral hydrogen-bonding catalysts and applied to the highly enantioselective Mannich reaction of arylaldehyde N-Boc imines and diazo compounds. Copyright

A New Asymmetric Synthesis of β-Aminophosphonic Acids

Mikolajczyk, Marian,Lyzwa, Piotr,Drabowicz, Jozef

, p. 357 - 358 (2007/10/03)

Addition of α-phosphonate carbanions to (S)-sulfinimines 2 gives N-sulfinyl-β-aminophosphonates 3 with a high diastereoselectivity (up to 10:1).The major diastereometer of 3 (R=Ph) was converted into (+)-(R)-β-amino-β-phenylethanephosphonic acid 5. - Keyw

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