Electric Literature of 39648-67-4. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 39648-67-4, Name is (R)-4-Hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide. In a document type is Article, introducing its new discovery.
A Br°nsted acid/Lewis acid dual catalyst system was developed to promote efficient C-C bond formation between a range of oxocarbenium precursors derived from chromene acetals and ethyl diazoacetate. The reaction proceeds under mild conditions and is tolerant of functionalized 2H-chromenes and isochromene acetals. In addition, an asymmetric variant of diazoacetate addition towards 2H-chromene acetals is described. Continued investigations include further optimization of asymmetric induction towards the formation of diazo ester substituted 2H-chromene.
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