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4-allyl-4-methyl-3-phenyl-4H-isoxazol-5-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21943-76-0

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21943-76-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21943-76-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,4 and 3 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21943-76:
(7*2)+(6*1)+(5*9)+(4*4)+(3*3)+(2*7)+(1*6)=110
110 % 10 = 0
So 21943-76-0 is a valid CAS Registry Number.

21943-76-0Relevant academic research and scientific papers

Palladium-catalyzed decarboxylative intramolecular aziridination from 4h-isoxazol-5-ones leading to 1-azabicyclo[3.1.0]hex-2-enes

Okamoto, Kazuhiro,Oda, Tomohiro,Kohigashi, Sho,Ohe, Kouichi

supporting information; experimental part, p. 11470 - 11473 (2012/01/11)

A decarboxylative intramolecular aziridination reaction of alkene-tethered 4H-isoxazol-5-ones with a palladium/phosphine catalyst gave 1-azabicyclo[3.1.0] hex-2-enes in moderate to high yields (see scheme; dba=dibenzylideneacetone). The resulting N-fused bicyclic aziridines readily reacted with various reagents to afford ring-opening pyrroline derivatives.

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