178671-89-1Relevant articles and documents
Synthesis of 5-Substituted 2-Pyrrolidinones by Coupling of Organozinc Reagents with Cyclic N-Acyliminium Ions
Hidalgo-Mercado, Yazmín I.,Olivo, Horacio F.,Romero-Ortega, Moisés,Santos-Sánchez, Zaira A.,Zaragoza-Galicia, Ivann
, p. 4650 - 4656 (2019/12/11)
A coupling reaction between cyclic N-acyliminium ions with organozinc reagents is described. The cyclic N-acyliminium ions, generated in situ from N-substituted-5-hydroxy-2-pyrrolidinones by treatment with boron trifluoride-diethyl ether complex or titani
A versatile enantioselective synthesis of azabicyclic ring systems: A concise total synthesis of (+)-grandisine D and unnatural analogues
Fadeyi, Olugbeminiyi O.,Senter, Timothy J.,Hahn, Kristopher N.,Lindsley, Craig W.
, p. 5826 - 5831 (2012/06/29)
Closing in on azacines: We have developed a new six step approach for the rapid and enantioselective synthesis of indolizidine, pyrrolo[1,2-a]azepine, and pyrrolo[1,2-a]azocine azabicyclic systems and their respective lactam congeners, which are found in a host of natural products as well as pharmaceutical preparations. This protocol enables a concise enantioselective total synthesis of (+)-grandisine D in 16.4 % overall yield from commercial materials (see scheme). Copyright
β-, γ- and δ-Lactams as conformational constraints in ring-closing metathesis
Tarling, Chris A.,Holmes, Andrew B.,Markwell, Roger E.,Pearson, Neil D.
, p. 1695 - 1701 (2007/10/03)
The azabicycloalkenones 5, 6 and 7 were formed in excellent yields via ring-closing metathesis of the bis-alkenyl precursors 1, 2 and 3.
Ring-closing olefin metathesis for the synthesis of fused nitrogen heterocycles
Martin, Stephen F.,Chen, Hui-Ju,Courtney, Anne K.,Liao, Yusheng,Paetzel, Michael,Ramser, Melissa N.,Wagman, Allan S.
, p. 7251 - 7264 (2007/10/03)
A novel technique for the efficient synthesis of fused nitrogen heterocycles containing various combinations of five- and eight-membered rings has been developed. This method features the ring-closing metathesis (RCM), which is catalyzed by the molybdenum