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1027577-72-5

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1027577-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1027577-72-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,7,5,7 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1027577-72:
(9*1)+(8*0)+(7*2)+(6*7)+(5*5)+(4*7)+(3*7)+(2*7)+(1*2)=155
155 % 10 = 5
So 1027577-72-5 is a valid CAS Registry Number.

1027577-72-5Downstream Products

1027577-72-5Relevant articles and documents

A new sparteine surrogate for asymmetric deprotonation of N-Boc pyrrolidine

Stead, Darren,O'Brien, Peter,Sanderson, Adam

, p. 1409 - 1412 (2008)

(Chemical Equation Presented) The s-BuLi complex of a cyclohexane-derived diamine is as efficient as s-BuLi/(-)-sparteine for the asymmetric deprotonation of N-Boc pyrrolidine. This is the first example of high enantioselectivity using a non-sparteine-like diamine in such reactions. The ( S, S)-diamine is a useful (+)-sparteine surrogate and was utilized in short syntheses of (-)-indolizidine 167B and an intermediate for the synthesis of the CCK antagonist (+)-RP 66803.

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