Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. The appropriate choice can avoid electrode passivation, which strongly inhibit the efficient activation of substrates. 1197-66-6, Name is 2,2,6,6-Tetramethyl-2H-3,5,6-trihydropyran-4-one, molecular formula is C9H16O2. In a Article，once mentioned of 1197-66-6, Synthetic Route of 1197-66-6
Lewis acid mediated cyclization of the aldehyde 7 leads to 8, 9 and 10, of which 10 contains the structural and stereochemical elements of the ABC-rings of nodulisporic acid 1.
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Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics