Cas 75233-37-3,2-Hydroxy-4-oxo-5,6-diphenyl-3a-p-tolyl-2,3,3a,4-tetrahydro-pyrrolo[1,2-b]isoxazole-2,3-dicarboxylic acid dimethyl ester

75233-37-3

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Basic information

Product Name: 2-Hydroxy-4-oxo-5,6-diphenyl-3a-p-tolyl-2,3,3a,4-tetrahydro-pyrrolo[1,2-b]isoxazole-2,3-dicarboxylic acid dimethyl ester
Synonyms:
CAS NO:75233-37-3
Molecular Formula:
Molecular Weight: 499.52
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: 2-Hydroxy-4-oxo-5,6-diphenyl-3a-p-tolyl-2,3,3a,4-tetrahydro-pyrrolo[1,2-b]isoxazole-2,3-dicarboxylic acid dimethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 2-Hydroxy-4-oxo-5,6-diphenyl-3a-p-tolyl-2,3,3a,4-tetrahydro-pyrrolo[1,2-b]isoxazole-2,3-dicarboxylic acid dimethyl ester(75233-37-3)
EPA Substance Registry System: 2-Hydroxy-4-oxo-5,6-diphenyl-3a-p-tolyl-2,3,3a,4-tetrahydro-pyrrolo[1,2-b]isoxazole-2,3-dicarboxylic acid dimethyl ester(75233-37-3)

Safety Data

Hazard Codes: N/A
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Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 75233-37-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 75233-37-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,3 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 75233-37:
(7*7)+(6*5)+(5*2)+(4*3)+(3*3)+(2*3)+(1*7)=123
123 % 10 = 3
So 75233-37-3 is a valid CAS Registry Number.

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75233-37-3Relevant academic research and scientific papers

Cycloaddition Reaction of Dimethyl Acetylenedicarboxylate with 2,4,5-Triphenyl-3H-pyrrol-3-one 1-Oxide

Freeman, Jeremiah P.,Haddadin, Makhluf J.

, p. 4898 - 4902 (2007/10/02)

The reaction of 2,4,5-triphenyl-3H-pyrrol-3-one 1-oxide with dimethyl acetylenedicarboxylate gave pyridine 9a, 4(3H)-pyridone 10a, isoxazolidine 11, and traces of pyridone 13.Pyridone 10a is not an intermediate in the formation of 9a, yet on photolysis or pyrolysis above its melting point, 10a yielded pyridine 9a.Possible reaction mechanisms that rationalize the formation of these products are discussed.

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