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457067-78-6

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457067-78-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 457067-78-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,0,6 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 457067-78:
(8*4)+(7*5)+(6*7)+(5*0)+(4*6)+(3*7)+(2*7)+(1*8)=176
176 % 10 = 6
So 457067-78-6 is a valid CAS Registry Number.

457067-78-6Downstream Products

457067-78-6Relevant articles and documents

ASYMMETRIC OXIDATION OF 1,3-DITHIOLANES. A ROUTE TO THE OPTICAL RESOLUTION OF CARBONYL COMPOUNDS

Bortolini, O.,Furia, F. Di,Licini, G.,Modena, G.,Rossi, M.

, p. 6257 - 6260 (1986)

The asymmetric oxidation (t-BuO2H, Ti(OPr-i)4, DET) of a series of 1,3-dithiolanes was carried out to produce the corresponding S-oxides with high chemical and optical yields.By contrast, the oxidation of 1,3-dithianes and 1,3-oxathiolane prepared from the same carbonyl compounds gave much lower optical yields.The optical resolution of the model ketone, dl-menthone, via a) 1,3-dithiolane formation b) asymmetric S-oxidation c) chromatographic diasteromeric separation d) regeneration of the carbonyl group, (93percent optical yield), is described.

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