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1020180-02-2

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1020180-02-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1020180-02-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,1,8 and 0 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1020180-02:
(9*1)+(8*0)+(7*2)+(6*0)+(5*1)+(4*8)+(3*0)+(2*0)+(1*2)=62
62 % 10 = 2
So 1020180-02-2 is a valid CAS Registry Number.

1020180-02-2Relevant articles and documents

Process for the preparation of aminoaryl- and aminoheteroaryl boronic acids and esters

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, (2014/11/27)

The present invention relates to a process for the preparation of aminoaryl- and aminoheteroaryl boronic acids and esters of formula (I) in high yields The claimed process uses diarylketal formula (V) to generate an arylbromid of formula (III) in which the amino-group is protected as bisarylmethylidenimino-group:

Preparation of Aminoaryl and Aminoheteroaryl Boronic Acids and Derivatives Thereof

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Page/Page column 5, (2008/12/04)

The invention relates to a method for preparation of aminoaryl- or aminoheteroarylboronic acids and esters and salts thereof in which an optionally substituted aminoaryl or aminoheteroaryl compound is protected at its nitrogen site via condensation with a carbonyl compound, subsequently metalated and converted with a suitable boron compound. Depending on the subsequent work-up and removal of the protective group, the corresponding boronic acid, the anhydride or the boronic acid ester thereof is obtained

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