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206278-57-1

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206278-57-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 206278-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,2,7 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 206278-57:
(8*2)+(7*0)+(6*6)+(5*2)+(4*7)+(3*8)+(2*5)+(1*7)=131
131 % 10 = 1
So 206278-57-1 is a valid CAS Registry Number.

206278-57-1Downstream Products

206278-57-1Relevant articles and documents

Enantioselective synthesis of α-hydroxy thioesters via oxazaborolidine- mediated reduction of α-phenylthio enones

Berenguer, Ramon,Cavero, Marta,Garcia, Jordi,Munoz, Montse

, p. 2183 - 2186 (2007/10/03)

α-Phenylthio-α,β-alkenones (2), readily available by Pd(II)-catalysed coupling of (E)-1 phenylthio-1-tributylstannylhex-1-ene with the corresponding acid chlorides have been treated with borane in the presence of phenylglycine- or proline-derived oxazaborolidines to afford 2-phenylthio-2- alken-1-ols (3) with good to excellent enantioselectivities. Ozonolysis of 3 provides a new and efficient route to chiral α-hydroxy thioesters 4.

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