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557087-01-1

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557087-01-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 557087-01-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,0,8 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 557087-01:
(8*5)+(7*5)+(6*7)+(5*0)+(4*8)+(3*7)+(2*0)+(1*1)=171
171 % 10 = 1
So 557087-01-1 is a valid CAS Registry Number.

557087-01-1Relevant articles and documents

Photoinduced Deaminative Borylation of Unreactive Aromatic Amines Enhanced by CO2

Shiozuka, Akira,Sekine, Kohei,Kuninobu, Yoichiro

supporting information, p. 4774 - 4778 (2021/06/28)

Herein, direct unreactive C-N borylation of aromatic amines by a photocatalyst was achieved. The C-N borylation of aromatic amines with bis(pinacolato)diboron (B2pin2) proceeded using a pyrene catalyst under light irradiation to afford desired borylated products and aminoborane as a byproduct. The yield of the borylated product improved under a CO2 atmosphere which probably reduced the inhibitory effect of aminoborane. Mechanistic studies suggested that the C-N bond cleavage and C-B bond formation proceeded via a concerted pathway.

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