In an article, published in an article, once mentioned the application of 39648-67-4, Name is (R)-4-Hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide,molecular formula is C20H13O4P, is a conventional compound. this article was the specific content is as follows.Quality Control of: (R)-4-Hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide
A practical iridium-catalyzed cascade/stepwise synthesis of dihydroquinazolinones (DHQs) and bis-DHQs fused to medium to large N-heterocyclic rings is developed. The reaction undergoes benzamide-directed intermolecular C-H amination with an aldehyde-tethered alkyl azide, and then the newly installed amino group undergoes intramolecular cyclization with a remote aldehyde group present in azide and amidyl group of benzamide either intrinsically or catalyzed by phosphoric acid, facilitating the formation of bicyclic and/or tricyclic rings in a very efficient manner.
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