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Isoxazolidine, 2,5-diphenyl-3-(2-phenylethenyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20503-93-9

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20503-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20503-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,0 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20503-93:
(7*2)+(6*0)+(5*5)+(4*0)+(3*3)+(2*9)+(1*3)=69
69 % 10 = 9
So 20503-93-9 is a valid CAS Registry Number.

20503-93-9Downstream Products

20503-93-9Relevant academic research and scientific papers

Catalyst-Free Regioselective [3+2] Cycloadditions of α,β-unsaturated N-arylnitrones with Alkenes to Access Functionalized Isoxazolidines: A DFT Study

Ghosh, Arnab,Mane, Manoj V.,Rode, Haridas B.,Patil, Siddappa A.,Sridhar, Balasubramanian,Dateer, Ramesh B.

supporting information, p. 899 - 903 (2020/03/03)

The catalyst-free regioselective [3+2]-cycloaddition of α,β-unsaturated N-arylnitrones with alkenes are developed. The series of synthetically important functionalized isoxazolidines are prepared in good to excellent yields by step economic pathway under ligand and transition-metal-free conditions. The regioselective cycloaddition pathway supported by control experiment and computational study.

Microwave induced 1,3-Dipolar cycloaddition reactions of nitrones

Baruah, Bipul,Prajapati, Dipak,Boruah, Anima,Sandhu, Jagir S.

, p. 2563 - 2567 (2007/10/03)

1,3-Dipolar cycloaddition reactions involving unreactive nitrones have been carried out successfully under microwave irradiations. The reaction of nitrones I and alkene 2 proceeded regiospecifically at atmospheric pressure and the corresponding isoxazolidines 3 were obtained in high yields.

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