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54016-38-5

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54016-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54016-38-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,0,1 and 6 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 54016-38:
(7*5)+(6*4)+(5*0)+(4*1)+(3*6)+(2*3)+(1*8)=95
95 % 10 = 5
So 54016-38-5 is a valid CAS Registry Number.

54016-38-5Downstream Products

54016-38-5Relevant articles and documents

N-Heterocyclic Carbene Catalyzed [3+2] Cycloaddition of Enals with β,γ -Unsaturated α -Ketimino Esters for the Synthesis of Multisubstituted Cyclopentanone

Shi, Xiao-Qian,Dong, Meng-Die,Duan, Xiao-Yong,Cao, Teng-Liang,Qi, Jing

, p. 807 - 811 (2020)

A convenient strategy of N-heterocyclic carbene catalyzed [3+2] cycloaddition of enals with β,γ-unsaturated α-ketimino esters is developed. This effective protocol features mild reaction conditions and broad substrate scope, which enables the rapid assembly of various benzoxazinone derived cyclopentanone scaffolds in good to high yields with excellent diastereoselectivities. (Figure presented.).

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