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1402830-73-2

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1402830-73-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1402830-73-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,8,3 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1402830-73:
(9*1)+(8*4)+(7*0)+(6*2)+(5*8)+(4*3)+(3*0)+(2*7)+(1*3)=122
122 % 10 = 2
So 1402830-73-2 is a valid CAS Registry Number.

1402830-73-2Relevant articles and documents

Copper(I)-catalyzed enantioselective incorporation of ketones to cyclic hemiaminals for the synthesis of versatile alkaloid precursors

Shi, Shi-Liang,Wei, Xiao-Feng,Shimizu, Yohei,Kanai, Motomu

supporting information, p. 17019 - 17022,4 (2012/12/12)

A general catalytic enantioselective method that can produce five-, six-, and seven-membered N-heterocycles possessing various ketone moieties starting from stable and easily available cyclic hemiaminals and ketones was developed. The method involves three successive steps in one pot (aldol addition, dehydration, and enantioselective intramolecular aza-Michael reaction), all of which are promoted by a chiral copper(I)-conjugated Bronsted base catalyst. This method is useful for rapid access to versatile chiral building blocks for the synthesis of drug-lead alkaloids.

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