The umpolung alkylation of silyl enol ethers with an iodonium(III) ylide proceeds under mild conditions to afford various 1,4-dicarbonyl compounds in high yields in the presence of a halogen-bonding catalyst. Unlike typical transition-metal activation processes of such ylideprecursors, which tend to proceed via carbenoid intermediates, experimental and computational studies indicate that halogen bonding
Electrochemical oxidation of 3-substituted indoles
作者:Juan J. Arteaga Giraldo、Ashley C. Lindsay、Rachel Chae-Young Seo、Paul A. Kilmartin、Jonathan Sperry
DOI:10.1039/d3ob00831b
日期:——
pharmaceuticals. An appealing method for accessing 2-oxindoles is by oxidation of the corresponding indole, a transformation currently executed using stoichiometric quantities of unsafe chemical oxidants that can also form unwanted side-products. Herein, we report that 3-substituted indoles undergo a logistically straightforward, electrochemical oxidation to the corresponding 2-oxindole in the presence of potassium
3,3′-Diindolylmethane Exhibits Significant Metabolism after Oral Dosing in Humans
作者:Monica L. Vermillion Maier、Lisbeth K. Siddens、Sandra L. Uesugi、Jaewoo Choi、Scott W. Leonard、Jamie M. Pennington、Susan C. Tilton、Jordan N. Smith、Emily Ho、H.H. Sherry Chow、Bach D. Nguyen、Siva K. Kolluri、David E. Williams