Cas 171561-44-7,(E)-2-[(Z)-2-Amino-1-(diethoxy-phosphoryl)-2-p-tolyl-vinyl]-but-2-enedioic acid dimethyl ester

171561-44-7

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Basic information

Product Name: (E)-2-[(Z)-2-Amino-1-(diethoxy-phosphoryl)-2-p-tolyl-vinyl]-but-2-enedioic acid dimethyl ester
Synonyms: (E)-2-[(Z)-2-Amino-1-(diethoxy-phosphoryl)-2-p-tolyl-vinyl]-but-2-enedioic acid dimethyl ester
CAS NO:171561-44-7
Molecular Formula:
Molecular Weight: 411.392
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: (E)-2-[(Z)-2-Amino-1-(diethoxy-phosphoryl)-2-p-tolyl-vinyl]-but-2-enedioic acid dimethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: (E)-2-[(Z)-2-Amino-1-(diethoxy-phosphoryl)-2-p-tolyl-vinyl]-but-2-enedioic acid dimethyl ester(171561-44-7)
EPA Substance Registry System: (E)-2-[(Z)-2-Amino-1-(diethoxy-phosphoryl)-2-p-tolyl-vinyl]-but-2-enedioic acid dimethyl ester(171561-44-7)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 171561-44-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 171561-44-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,5,6 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 171561-44:
(8*1)+(7*7)+(6*1)+(5*5)+(4*6)+(3*1)+(2*4)+(1*4)=127
127 % 10 = 7
So 171561-44-7 is a valid CAS Registry Number.

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171561-44-7Relevant academic research and scientific papers

Synthesis of 5-Phosphonyl-2(1H)-pyridones from Primary β-Enaminophosphonate and Acetylenic Esters

Palacios, Francisco,Garcia, Jesus,Retana, Ana M Ochoa,Oyarzabal, Julen

, p. 1915 - 1922 (2007/10/02)

Primary β-enaminophosphonates (2) are obtained from metallated diethyl methylphosphonate and nitriles.Reaction of enamines (2) with ethyl propiolate and dimethyl acetylenedicarboxylate yields 1:1 adducts (7) and (8), respectively.Treatment of monoadducts (7) with sodium hydride leads to 5-phosphonyl-2(1H)-pyridones (1).Functionalized enamines (8) undergo thermal cyclocondensation to give pyridones (9).

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