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136436-82-3

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136436-82-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136436-82-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,4,3 and 6 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 136436-82:
(8*1)+(7*3)+(6*6)+(5*4)+(4*3)+(3*6)+(2*8)+(1*2)=133
133 % 10 = 3
So 136436-82-3 is a valid CAS Registry Number.

136436-82-3Downstream Products

136436-82-3Relevant academic research and scientific papers

Efficient parallel resolution of pentafluorophenyl active esters using quasi-enantiomeric combinations of oxazolidin-2-ones

Shaye, Najla Al,Chavda, Sameer,Coulbeck, Elliot,Eames, Jason,Yohannes, Yonas

experimental part, p. 439 - 463 (2011/06/17)

The parallel resolution of racemic pentafluorophenyl 2-aryl/ phenylpropanoates and butanoates using an equimolar combination of quasi-enantiomeric Evans oxazolidin-2-ones is discussed. The levels of diastereoselectivity were excellent (>90% de) leading to separable quasi-enantiomeric oxazolidin-2-ones in good yield. This methodology was used to resolve a series of structurally related 2-aryl/phenylpropanoic and butanoic acids.

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