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936641-30-4

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936641-30-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 936641-30-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,6,6,4 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 936641-30:
(8*9)+(7*3)+(6*6)+(5*6)+(4*4)+(3*1)+(2*3)+(1*0)=184
184 % 10 = 4
So 936641-30-4 is a valid CAS Registry Number.

936641-30-4Downstream Products

936641-30-4Relevant articles and documents

Development and application of a direct vinyl lithiation of cis-stilbene and a directed vinyl lithiation of an unsymmetrical cis-stilbene

Cotter, Juliet,Hogan, Anne-Marie L.,O'Shea, Donal F.

, p. 1493 - 1496 (2007)

Equation Presented The vinyl deprotonation of cis-stilbene can be readily achieved using s-BuLi in THF at -25°C. The generated 1-lithio-1,2- diphenylethene undergoes an in situ Z-to-E isomerization, and subsequent reaction with electrophiles results in an efficient stereoselective synthesis of trisubstituted alkenes. A directed vinyl lithiation of the unsymmetrical cis-stilbene 2-styryl-phenyl-carbamic acid tert-butyl ester can be achieved regioselectively, thereby expanding this methodology for further synthetic applications in indole chemistry.

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