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(4-nitro-cinnamylidene)-malonic acid dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

66684-77-3

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66684-77-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66684-77-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,6,8 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66684-77:
(7*6)+(6*6)+(5*6)+(4*8)+(3*4)+(2*7)+(1*7)=173
173 % 10 = 3
So 66684-77-3 is a valid CAS Registry Number.

66684-77-3Downstream Products

66684-77-3Relevant academic research and scientific papers

Asymmetric michael addition of ketones to alkylidene malonates and allylidene malonates via enamine - Metal lewis acid bifunctional catalysis

Liu, Lu,Sarkisian, Ryan,Xu, Zhenghu,Wang, Hong

supporting information, p. 7693 - 7699 (2012/11/07)

Novel enamine-metal Lewis acid bifunctional catalysts were successfully applied to the asymmetric Michael addition of ketones to alkylidene malonates, offering excellent stereoselectivity (up to >99% ee and >99:1 dr). The asymmetric Michael addition of ketones to allylidene malonates was also achieved.

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