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2-methyl-4-ethyl-4-phenyl-Δ2-oxazolin-5-one is a complex organic compound characterized by its unique structure and properties. It features a five-membered oxazolinone ring, which is a type of heterocyclic compound containing both oxygen and nitrogen atoms. The molecule is further distinguished by the presence of a methyl group at the 2-position, an ethyl group at the 4-position, and a phenyl group also at the 4-position. This arrangement of substituents contributes to its specific chemical reactivity and potential applications in various fields, such as pharmaceuticals or materials science. The compound's name reflects its structural features, with the Δ2 notation indicating the location of the double bond within the oxazolinone ring.

4855-25-8

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4855-25-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4855-25-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,5 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4855-25:
(6*4)+(5*8)+(4*5)+(3*5)+(2*2)+(1*5)=108
108 % 10 = 8
So 4855-25-8 is a valid CAS Registry Number.

4855-25-8Relevant academic research and scientific papers

Aza Cope Rearrangements in the Cyclopropenyl-and Allyl-Substituted Δ2-Oxazolinone Systems

Padwa, Albert,Akiba, Mitsuo,Cohen, Leslie A.,MacDonald, Gavin J.

, p. 695 - 703 (2007/10/02)

The scope of the thermal and photochemical reorganization reactions of a number of cyclopropenyl- and allyl- substituted oxazolinones has been examined.These systems undergo a facile sigmatropic rearrangement in accord with orbital symmetry predictions. 2-Methyl-4-allyl-Δ2-oxazolinones were found to undergo a 3,3-sigmatropic allyl shift on thermolysis to give the Δ3-oxazolinone isomer.In contrast, on direct irradiation the 2-methyl-4-allyl-Δ3-oxazolinones undergo a 1,3-allyl shift to give the Δ2-isomer.The 4,4-disubstituted Δ2-oxazolinones undergo decarbonylat ion either on irradiation or by flash vacuum pyrolysis to give acetimides.The acetimides formed were easily hydrolyzed to give the corresponding ketones.The excited-state behavior of the 2-phenyl-4-methyl-Δ2-oxazolinone system was found to be markedly different from that encountered with the 2-methyl-4-phenyl-substituted isomer.The rationale for the difference in behavior is discussed.

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