Cas 181768-44-5,(1-Diazo-2-oxo-4,4-diphenyl-but-3-enyl)-phosphonic acid dimethyl ester

181768-44-5

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Basic information

Product Name: (1-Diazo-2-oxo-4,4-diphenyl-but-3-enyl)-phosphonic acid dimethyl ester
Synonyms: (1-Diazo-2-oxo-4,4-diphenyl-but-3-enyl)-phosphonic acid dimethyl ester
CAS NO:181768-44-5
Molecular Formula:
Molecular Weight: 356.318
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: (1-Diazo-2-oxo-4,4-diphenyl-but-3-enyl)-phosphonic acid dimethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: (1-Diazo-2-oxo-4,4-diphenyl-but-3-enyl)-phosphonic acid dimethyl ester(181768-44-5)
EPA Substance Registry System: (1-Diazo-2-oxo-4,4-diphenyl-but-3-enyl)-phosphonic acid dimethyl ester(181768-44-5)

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: 181768-44-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 181768-44-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,7,6 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 181768-44:
(8*1)+(7*8)+(6*1)+(5*7)+(4*6)+(3*8)+(2*4)+(1*4)=165
165 % 10 = 5
So 181768-44-5 is a valid CAS Registry Number.

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181768-44-5Relevant academic research and scientific papers

Chemoselectivity in the rhodium(II) acetate catalysed decomposition of α-diazo-β-keto-γ,δ-alkenyl-δ-aryl compounds: Aromatic C-H insertion reaction or Wolff rearrangement-electrocyclization

Collomb, Didier,Chantegrel, Bernard,Deshayes, Christian

, p. 10455 - 10472 (2007/10/03)

The rhodium(II) acetate catalysed decomposition of α-diazo-β-keto-γ,δ-alkenyl phosphonates 1 substituted in the δ-position by an aryl group gave rise to mixtures of isomeric hydroxynaphthalenephosphonates, 3 resulting from a Wolff rearrangement-electrocyc

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