Iodonium ylides of methyl 3-oxo-trans,trans-6,8-tetradecadienoate (1) and diprotected methyl 3,5-di(t-butyldimethyl-silyloxy)-2,6,8-tetradecatrieneoate (5) undergo regio-and stereoselective intramolecular cyclopropanation with Cu(I)Cl catalysis to form key bicyclo[3.1.0] intermediates for prostaglandin synthesis. (C) 1998 Elsevier Science Ltd. All rights reserved.
Total Synthesis of 15-F<sub>2t</sub>-Isoprostane by Using a New Oxidative Cyclization of Distonic Radical Anions as the Key Step
作者:Ullrich Jahn、Emanuela Dinca
DOI:10.1002/chem.200802139
日期:2009.1
Cyclization/oxygenation and alkylation reactions: A concise totalsynthesis of 15‐F2t‐IsoP (see scheme) and its 15‐epimer, today used as the gold standard marker of oxidative stress in vivo, has been accomplished in 12 steps in 14 % overall yield by applying a vinylogous aldol addition, a newoxidativeradicalanioncyclization/oxygenation sequence to construct the cyclopentane core, and an acetylide
Regioselective cyclopropanation reactions using iodonium ylides: Synthesis of prostaglandin precursors
作者:Robert M. Moriarty、Eric J. May、Liang Guo、Om Prakash
DOI:10.1016/s0040-4039(97)10620-7
日期:1998.2
Iodonium ylides of methyl 3-oxo-trans,trans-6,8-tetradecadienoate (1) and diprotected methyl 3,5-di(t-butyldimethyl-silyloxy)-2,6,8-tetradecatrieneoate (5) undergo regio-and stereoselective intramolecular cyclopropanation with Cu(I)Cl catalysis to form key bicyclo[3.1.0] intermediates for prostaglandin synthesis. (C) 1998 Elsevier Science Ltd. All rights reserved.