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444144-88-1

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444144-88-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 444144-88-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,1,4 and 4 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 444144-88:
(8*4)+(7*4)+(6*4)+(5*1)+(4*4)+(3*4)+(2*8)+(1*8)=141
141 % 10 = 1
So 444144-88-1 is a valid CAS Registry Number.

444144-88-1Relevant articles and documents

Palladium(II)-catalyzed Michael-type hydroarylation of nitroalkenes using aryltins and sodium tetraarylborates

Ohe, Toshiyuki,Uemura, Sakae

, p. 1423 - 1431 (2003)

A variety of aryltin compounds and sodium tetraarylborates can be employed for Michael-type hydroarylation reactions of nitroalkenes to afford β-arylnitroalkanes in moderate to good yields in the presence of either LiCl, MgCl2, or CaCl2 and a catalytic amount of palladium(II) salt (0.05 molar amount) in acetic acid. Results show that 50-70% of aryl groups out of all in these aryl compounds can be transferred to the products in this hydroarylation. The addition of a catalytic amount (0.05-0.10 molar amount) of a Lewis acid chloride, BiCl3 or SbCl3, much improves the product yield in some cases.

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