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1139-06-6

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1139-06-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1139-06-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,3 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1139-06:
(6*1)+(5*1)+(4*3)+(3*9)+(2*0)+(1*6)=56
56 % 10 = 6
So 1139-06-6 is a valid CAS Registry Number.

1139-06-6Relevant articles and documents

Mg-promoted mixed pinacol coupling

Maekawa, Hirofumi,Yamamoto, Yoshimasa,Shimada, Hisashi,Yonemura, Kazuaki,Nishiguchi, Ikuzo

, p. 3869 - 3872 (2004)

Mg-promoted reduction of a mixture of aromatic ketones (or imines) and aliphatic carbonyl compounds in N,N-dimethylformamide (DMF) brought about unique mixed pinacol type of cross coupling to give unsymmetrical vicinal diols (or amino alcohols) or α-hydroxyketones in good to moderate yields. The reaction may be initiated by electron transfer from magnesium metal to an aromatic carbonyl compound possessing a less negative reduction potential. The difference of reduction potential between aromatic ketones (or imines) and aliphatic carbonyl compounds was found to be one of the important key factors in this selective cross coupling.

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Lyle et al.

, p. 2713 (1954)

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