Zinc-Mediated Intermolecular Reductive Radical Fluoroalkylsulfination of Unsaturated Carbon-Carbon Bonds with Fluoroalkyl Bromides and Sulfur Dioxide
作者:Yongan Liu、Qiongzhen Lin、Zhiwei Xiao、Changge Zheng、Yong Guo、Qing-Yun Chen、Chao Liu
DOI:10.1002/chem.201805526
日期:2019.2.1
general zinc‐mediated intermolecular reductiveradical fluoroalkylsulfination of unsaturated C−C bonds has been developed using readily available fluoroalkyl bromides and 1,4‐diazabicyclo[2.2.2]octane‐bis(sulfur dioxide) adduct (DABSO) with wide substrate scope and excellent functional group tolerance. Sulfur dioxide anionradical generated in situ from the reduction of sulfur dioxide with zinc may be
Synthesis of hydroquinone-, biphenol-, and binaphthol-containing aza macroheterocycles via regioselective hydroformylation and reductive amination
作者:Goran Angelovski、Peter Eilbracht
DOI:10.1016/j.tet.2003.08.012
日期:2003.10
Rhodium(I) catalyzed regioselective hydroformylation of diolefins and subsequent reductive amination of the dialdehydes in the presence of α,ω-diamines is applied to azamacroheterocyclic ring synthesis. Starting from aromatic diallyl ethers of hydroquinone, biphenol and binaphthol 20–28 membered macroheterocycles were obtained in up to 78% yield.
Total Synthesis of the Nonadjacently Linked Bis-tetrahydrofuran Acetogenin Bullatanocin (Squamostatin C)
作者:Lei Zhu、David R. Mootoo
DOI:10.1021/jo049955g
日期:2004.4.1
the nonadjacently linked bis-THF acetogenin bullatanocin (squamostatin C) is described. The synthetic strategy is a modular one based on three components, two mono-THF alkenes and a butenolide precursor, and the olefin cross-metathesis and Wittig olefination as the segment-coupling reactions. The synthesis confirms the structure of the natural product, and its convergent design makes it especially attractive