Synthesis of 5-Substituted 2-Pyrrolidinones by Coupling of Organozinc Reagents with Cyclic N-Acyliminium Ions
作者:Ivann Zaragoza-Galicia、Zaira A. Santos-Sánchez、Yazmín I. Hidalgo-Mercado、Horacio F. Olivo、Moisés Romero-Ortega
DOI:10.1055/s-0037-1610733
日期:2019.12
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 titanium tetrachloride, are trapped by the organozinc reagent, which is formed from an alkyl bromide in the presence of zinc in the same reaction medium. The
Speckamp, W. N.; Boer, J. J. J. de, Recueil des Travaux Chimiques des Pays-Bas, 1983, vol. 102, # 9, p. 410 - 414
作者:Speckamp, W. N.、Boer, J. J. J. de
DOI:——
日期:——
SPECKAMP, W. N.;DE, BOER, J. J. J., REC. TRAV. CHIM. PAYS-BAS, 1983, 102, N 9, 410-414
作者:SPECKAMP, W. N.、DE, BOER, J. J. J.
DOI:——
日期:——
COMPOUNDS AND COMPOSITIONS FOR INTRACELLULAR DELIVERY OF THERAPEUTIC AGENTS
申请人:Modernatx, Inc.
公开号:EP3350157B1
公开(公告)日:2022-01-05
One-Pot Double-Annulation Strategy for the Synthesis of Unusual Fused Bis-Heterocycles
作者:Shukree Abdul-Rashed、Georgios Alachouzos、William W. Brennessel、Alison J. Frontier
DOI:10.1021/acs.orglett.0c01351
日期:2020.6.5
A novel metal-free double-annulation cascade for the construction of unusual fused heterocyclic systems is described. This simple protocol enables the sequential assembly of two rings in one pot from two simple precursors. Acidic conditions promote the condensation and the intramolecular alkynyl Prins reaction of an enyne or arenyne alcohol with a cyclic hemiaminal to form a five-, six-, or seven-membered