The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: (5aS,10bR)-2-(2,6-Diethylphenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate, is researched, Molecular C22H24BF4N3O, CAS is 1787246-78-9, about A Carbene Catalysis Strategy for the Synthesis of Protoilludane Natural Products, the main research direction is carbene catalysis mellolide protoilludane marasmane sesquiterpenoid synthesis; N-heterocyclic carbenes; armillaridin; marasmane; protoilludane; total synthesis.SDS of cas: 1787246-78-9.
The Armillaria and Lactarius genera of fungi produce the antimicrobial and cytotoxic mellolide, protoilludane, and marasmane sesquiterpenoids. We report a unified synthetic strategy to access the protoilludane, mellolide, and marasmane families of natural products. The key features of these syntheses are (1) the organocatalytic, enantioselective construction of key chiral intermediates from a simple achiral precursor, (2) the utility of a key 1,2-cyclobutanediol intermediate to serve as a precursor to each natural product class, and (3) a direct chem. conversion of a protoilludane to a marasmane (I → II) through serendipitous ring contraction, which provides exptl. support for their proposed biosynthetic relationships.
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