Multiple Regioselective Functionalizations of Quinolines via Magnesiations
摘要:
A wide range of polyfunctionalized quinolines was prepared via chemo- and regioselective magnesiation reactions using appropriate Mg reagents, such as i-PrMgCl center dot LiCl, MesMgBr center dot LiCl, Mes(2)Mg center dot 2LiBr, TMPMgCl-LiCl, and TMP2Mg center dot 2LiCl. An application to the total synthesis of the biologically active compound talnetant was performed (six steps, 28%).
Multiple Regioselective Functionalizations of Quinolines via Magnesiations
作者:Nadège Boudet、Jennifer R. Lachs、Paul Knochel
DOI:10.1021/ol702494k
日期:2007.12.1
A wide range of polyfunctionalized quinolines was prepared via chemo- and regioselective magnesiation reactions using appropriate Mg reagents, such as i-PrMgCl center dot LiCl, MesMgBr center dot LiCl, Mes(2)Mg center dot 2LiBr, TMPMgCl-LiCl, and TMP2Mg center dot 2LiCl. An application to the total synthesis of the biologically active compound talnetant was performed (six steps, 28%).
TIPS‐Ethynylated Naphthodiquinoline and Naphthodiacridine: Novel Diazabisacenes
作者:Lukas Ahrens、Steffen Maier、Erik Misselwitz、Thomas Oeser、Frank Rominger、Jan Freudenberg、Uwe H. F. Bunz
DOI:10.1002/chem.202101246
日期:——
The synthesis of two diazabisacenes is reported. A bisboronated naphthalene was Suzuki-coupled to substituted ethyl nicotinates, then cyclized by intramolecular Friedel-Crafts acylation. The resulting diketones were alkynylated and reduced to give the title compounds, bis(TIPS-ethynyl)-substituted naphtha[1,8-gh:5,4-g′h′]diquinoline and naphtho[1,8-bc:5,4-b′c′]diacridine. Nitrogen incorporation stabilizes