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136679-70-4

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136679-70-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136679-70-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,7 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 136679-70:
(8*1)+(7*3)+(6*6)+(5*6)+(4*7)+(3*9)+(2*7)+(1*0)=164
164 % 10 = 4
So 136679-70-4 is a valid CAS Registry Number.

136679-70-4Relevant articles and documents

A New Method for Stereoselective Homoallylic Amine Synthesis

Armstrong, Susan K.,Collington, Eric W.,Knight, Julian G.,Naylor, Alan,Warren, Stuart

, p. 1433 - 1448 (2007/10/02)

Nitrile oxide cycloadditions to readily available allylic diphenylphosphine oxides 2 proceeded regioselectively and stereoselectively to give 5-(1'-diphenylphosphinoylalkyl)isoxazolines 4 and 5.These heterocycles were reduced to δ-amino-β-hydroxyalkyldiphenylphosphine oxides 6 and 7 using a combination of sodium borohydride and nickel(II) chloride.Stereospecific elimination of diphenylphosphinic acid from the reduction products using sodium hydride in N,N-dimethylformamide gave homoallylic primary amines 8 and 9 of defined stereochemistry.

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