Enantioselective aromatic Claisen rearrangement of allyl 2-naphthyl ethers catalyzed by π–Cu(ii) complexes
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DOI: 10.1039/d2sc06771d
Abstract: The first catalytic enantioselective aromatic Claisen rearrangement of allyl 2-naphthyl ethers using 5–10 mol% of π–copper(ii) complexes is reported. A Cu(OTf)2 complex with an l-α-homoalanine amide ligand gave (S)-products in up to 92% ee. Conversely,… read more here.
Keywords: aromatic claisen; rearrangement allyl; claisen rearrangement; claisen ... See more keywords
Unexpected Rearrangement of N-Allyl-2-phenyl-4,5-Dihydrooxazole-4-Carboxamides to Construct Aza-Quaternary Carbon Centers
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DOI: 10.3390/molecules24244495
Abstract: The unexpected rearrangement of N-allyl-2-phenyl-4,5-dihydrooxazole-4-carboxamides in the presence of LiHMDS has been found. The key features are: (1) the net reaction consisted of 1,3-migration of the N-allyl group, (2) the rearrangement produced a congested aza-quaternary… read more here.
Keywords: unexpected rearrangement; dihydrooxazole carboxamides; rearrangement allyl; allyl ... See more keywords