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ethyl 3-diethoxyphosphoryl-4-oxo-4-phenylbutanoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

163491-99-4

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163491-99-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 163491-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,4,9 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 163491-99:
(8*1)+(7*6)+(6*3)+(5*4)+(4*9)+(3*1)+(2*9)+(1*9)=154
154 % 10 = 4
So 163491-99-4 is a valid CAS Registry Number.

163491-99-4Relevant academic research and scientific papers

Horner-Wadsworth-Emmons olefination of nonstabilized phosphonates. A new synthetic approach to β,γ-unsaturated amides

Janecki,Janecki, Tomasz,Bodalski,Bodalski, Ryszard,Wieczorek,Wieczorek, Michakl,Bujacz,Bujacz, Grzegorz

, p. 1721 - 1740 (1995)

Aminolysis of readily accessible β-diethoxyphosphonyl-γ-butyrolactones 5 and 22 provides a convenient entry to (E)-β,γ-unsaturated amides 8 and 24 respectively. The key step of the aminolysis involves elimination of diethoxyphosporic acid from the corresp

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