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23656-73-7

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23656-73-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23656-73-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,6,5 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 23656-73:
(7*2)+(6*3)+(5*6)+(4*5)+(3*6)+(2*7)+(1*3)=117
117 % 10 = 7
So 23656-73-7 is a valid CAS Registry Number.

23656-73-7Downstream Products

23656-73-7Relevant articles and documents

LiCl-promoted amination of β-methoxy amides (γ-lactones)

Jia, Wen-Qiang,Pan, Xian-Dao,Shen, Long-Ying,Wang, Xiao-Jian,Zeng, Bing-Lin,Zhao, Hong-Yi,Zhao, Ru

, p. 34938 - 34942 (2020)

An efficient and mild method has been developed for the amination of β-methoxy amides (γ-lactones) including natural products michelolide, costunolide and parthenolide derivatives by using lithium chloride in good yields. This reaction is applicable to a wide range of substrates with good functional group tolerance. Mechanism studies show that the reactions undergo a LiCl promoted MeOH elimination from the substrates to form the corresponding α,β-unsaturated intermediates followed by the Michael addition of amines.

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