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161564-07-4

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161564-07-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161564-07-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,5,6 and 4 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 161564-07:
(8*1)+(7*6)+(6*1)+(5*5)+(4*6)+(3*4)+(2*0)+(1*7)=124
124 % 10 = 4
So 161564-07-4 is a valid CAS Registry Number.

161564-07-4Downstream Products

161564-07-4Relevant articles and documents

Asymmetric α-2-tosylvinylation of in situ-generated N-2-tosylvinyl proline-derived ammonium ylides

Igarashi, Tomohito,Tayama, Eiji,Iwamoto, Hajime,Hasegawa, Eietsu

, p. 1819 - 1821 (2011/05/05)

Asymmetric α-2-tosylvinylation of N-substituted proline esters using ethynyl tolyl sulfone as an electrophile was shown to proceed in good yield with high enantioselectivities without the addition of any bases. The reaction proceeds via the formation of N-2-tosylvinyl ammonium ylides.

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