One-Pot Transformation of Simple Furans into Octahydroindole Scaffolds
作者:Dimitris Kalaitzakis、Myron Triantafyllakis、Georgios I. Ioannou、Georgios Vassilikogiannakis
DOI:10.1002/anie.201700620
日期:2017.3.27
A highly efficient and general singlet‐oxygen‐initiated one‐pot transformation of readily accessible furans into octahydroindolescaffolds has been developed.
已经开发了一种高效且通用的单线态氧引发的单锅法,将易得的呋喃转化为八氢吲哚支架。
Synthesis and bioactivity of analogues of the marine antibiotic tropodithietic acid
作者:Patrick Rabe、Tim A Klapschinski、Nelson L Brock、Christian A Citron、Paul D’Alvise、Lone Gram、Jeroen S Dickschat
DOI:10.3762/bjoc.10.188
日期:——
Tropodithietic acid (TDA) is a structurally unique sulfur-containing antibiotic from the Roseobacter clade bacterium Phaeobacter inhibens DSM 17395 and a few other related species. We have synthesised several structural analogues of TDA and used them in bioactivity tests against Staphylococcus aureus and Vibrio anguillarum for a structure-activity relationship (SAR) study, revealing that the sulfur-free
Expedient and Diastereodivergent Assembly of Terpenoid Decalin Subunits having Quaternary Stereocenters through Organocatalytic Robinson Annulation of Nazarov Reagent
report an expedient approach to highly functionalized cis‐ and trans‐decalines that could function as key structural subunits toward the synthesis of various classes of terpenoids. Key to the strategy is an organocatalyzed Robinsonannulation reaction of the Nazarovreagent that affords chiral enone building blocks with high enantioselectivities. The quaternary carbon stereogenic center can direct the subsequent
Rapid construction of tetrahydropyridine scaffolds <i>via</i> formal imino Diels–Alder reactions of Schiff bases and Nazarov reagents
作者:Yen-Ku Wu、Viresh H. Rawal
DOI:10.1039/c9ob01880h
日期:——
Described is a one-flask, two-step method for the synthesis of highly functionalized piperidines. The process involves formal [4 + 2] cycloadditions of Schiffbases and Nazarov reagents, followed by facile elaborations of the initial cycloadducts. Notably, these aza-annulations are facilitated by protic solvents and proceed smoothly under ambient conditions, without other additives. The synthetic utility
Photochemical Route to the Synthesis of Thiolane 1-Oxides
作者:Jeffrey D. Winkler、Esther C. Y. Lee
DOI:10.1021/ja060962r
日期:2006.7.19
The preparation of thiolane 1-oxide 10 by photochemically mediated rearrangement of sulfoxide 9 in high yield is described. The efficient construction of quaternary carbon centers underscores the utility of this methodology in organic synthesis. Further manipulation of photoadduct 10 leads to the formation of diverse heterocyclic structures.