Solvent-free Diels–Alder reactions catalyzed by FeCl3 on Aerosil® silica
作者:Maria C. Donatoni、Gilmar A.B. Junior、Kleber T. de Oliveira、Romulo A. Ando、Timothy J. Brocksom、Alcindo A. Dos Santos
DOI:10.1016/j.tet.2014.02.017
日期:2014.5
A mild solvent-free protocol for the promotion of the Diels–Alder reactions of simple dienes and p-benzoquinones, catalyzed by a mixture of iron(III) chloride on Aerosil® silica is reported.
Regioselectivities of Diels-Alder cycloadditions to methoxy-substituted quinones
作者:Inga-Mai Tegmo-Larsson、Melvin D Rozeboom、K.N Houk
DOI:10.1016/s0040-4039(01)93272-1
日期:1981.1
Triflimide Activation of a Chiral Oxazaborolidine Leads to a More General Catalytic System for Enantioselective Diels−Alder Addition
作者:Do Hyun Ryu、E. J. Corey
DOI:10.1021/ja035393r
日期:2003.5.1
The strong acid triflimide ((CF3SO2)2NH) protonates chiral oxazaborolidines to form superactive, stable, chiral Lewis acids which are highly effective catalysts for a wide variety of enantioselective Diels-Alder reactions, documented herein by more than 20 examples.
Stereoselective Diels-Alder reaction of electrogenerated quinones on a PTFE-fiber coated electrode in lithium perchlorate / nitromethane
作者:Kazuhiro Chiba、Madoka Jinno、Ryota Kuramoto、Masahiro Tada
DOI:10.1016/s0040-4039(98)01090-9
日期:1998.7
Diels-Alder reaction of dienes and in situ generated quinones was accelerated on a PTFE-fit,er in an electrolytic lithium perchlorate / nitromethane system. In the presence of PTFE-fiber on a glassy carbon electrode, unstable quinones were efficiently generated by electrooxidation and trapped by dienes maintained on the poly-fluorinated fiber to give the desired cycloadducts stereoselectively in excellent yields. (C) 1998 Elsevier Science Ltd. All rights reserved.