Aromatic rings are highly stable due to the arrangement of the π-electrons situated above and below the plane of the aromatic ring, which form a π-electron cloud. 1235481-90-9, Name is P7C3-A20, molecular formula is C22H19Br2FN2O, belongs to benzoxazole compound. In a document, author is Niu, Zhi-Jie, Category: benzoxazole.
A transition-metal-free approach to the alkylation/arylation of benzoxazole was developed by employing Tf2O-activated-amide as the alkylating/arylating reagent. The mild reaction conditions, and particularly insensitivity to air and water, further enhance the synthetic potential in pharmaceutical synthesis.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem