Cas 186766-21-2,[3-Benzyl-3-hydroxy-2-oxo-1-phenyl-2,3-dihydro-1H-quinolin-(4E)-ylidene]-acetic acid ethyl ester

186766-21-2

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Basic information

Product Name: [3-Benzyl-3-hydroxy-2-oxo-1-phenyl-2,3-dihydro-1H-quinolin-(4E)-ylidene]-acetic acid ethyl ester
Synonyms: [3-Benzyl-3-hydroxy-2-oxo-1-phenyl-2,3-dihydro-1H-quinolin-(4E)-ylidene]-acetic acid ethyl ester
CAS NO:186766-21-2
Molecular Formula:
Molecular Weight: 413.473
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: [3-Benzyl-3-hydroxy-2-oxo-1-phenyl-2,3-dihydro-1H-quinolin-(4E)-ylidene]-acetic acid ethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: [3-Benzyl-3-hydroxy-2-oxo-1-phenyl-2,3-dihydro-1H-quinolin-(4E)-ylidene]-acetic acid ethyl ester(186766-21-2)
EPA Substance Registry System: [3-Benzyl-3-hydroxy-2-oxo-1-phenyl-2,3-dihydro-1H-quinolin-(4E)-ylidene]-acetic acid ethyl ester(186766-21-2)

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: 186766-21-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 186766-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,7,6 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 186766-21:
(8*1)+(7*8)+(6*6)+(5*7)+(4*6)+(3*6)+(2*2)+(1*1)=182
182 % 10 = 2
So 186766-21-2 is a valid CAS Registry Number.

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186766-21-2Relevant academic research and scientific papers

Reaction of 3-Hydroxy-1,2,3,4-tetrahydroquinoline-2,4-diones with Ethyl(Triphenylphosphoranylidene)acetate

Kafka, Stanislav,Kovar, Michal,Klasek, Antonin,Kappe, Thomas

, p. 1977 - 1982 (1996)

The Wittig reaction of 3-hydroxy-1,2,3,4-tetrahydroquinoline-2,4-diones 2 with ethyl (triphenyl-phosphoranylidene)acetate 3 proceeds stereoselectively to give E-4-carbethoxymethylene-1,2,3,4-tetrahydro-2-quinolones 4, which were hydrolyzed to corresponding acids 6. Butenolides 5 were detected and, in some cases, isolated as a minor product of the Wittig reaction.

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