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56348-67-5

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56348-67-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56348-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,3,4 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56348-67:
(7*5)+(6*6)+(5*3)+(4*4)+(3*8)+(2*6)+(1*7)=145
145 % 10 = 5
So 56348-67-5 is a valid CAS Registry Number.

56348-67-5Relevant articles and documents

Synthesis of enantiomerically enriched-bromonitriles from amino acids

Tka, Najeh,Kraem, Jamil,Hassine, Bechir Ben

, p. 735 - 743 (2013/01/15)

Two methods were investigated for the preparation of six chiral-bromonitriles with different optic purities. The nitrous deamination of amino acids gives-bromoacids, which react with chlorosulfonyl isocyanate followed by triethylamine to afford-bromonitriles with moderate enantiomeric excess. However, the dehydration of corresponding-bromoamids using thionyl chloride gives-bromonitriles with good enantiomeric excess up to 94%. The use of phosphoryl chloride instead of thionyl chloride results in more than 30% racemization as determined by high-performance liquid chromatograpic analysis.

REACTIONS OF ARYLDIAZONIUM TETRAFLUOROBORATES WITH ACRYLAMIDE IN THE PRESENCE OF THIOCYANATES, BROMIDES, AND CHLORIDES OF ALKALI METALS AND AMMONIUM

Grishchuk, B. D.,Gorbovoi, P. M.,Kudrik, E. Ya.,Ganushchak, N. I.

, p. 1620 - 1623 (2007/10/02)

The reaction of aryldiazonium tetrafluoroborates with acrylamide in a water-acetone mixture (1:2) in the presence of copper or iron salts and additives of thiocyanates (bromides, chlorides) of alkali metals and ammonium yields α-thiocyanato(bromo, chloro)-β-arylpropionamides. These compounds under the action of triethylamine easily eliminate hydrogen thiocyanate (bromide, chloride) with formation of β-arylacrylamides.

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