ABSTRACTIn this paper, a novel heterogeneous complex of zinc with N,N‐bis(2‐hydroxyphenyl)pyridine‐2,6‐dicarboxamide(BHPPDAH) was synthesized. The catalyst was found to be a highly effective catalyst for the three‐component coupling reactions of aldehydes, alkynes, and amines (A3 coupling) via C–H activation. The reactions could be applied to both aromatic and alip...... hiện toàn bộ
Zita Rádai, Petra Szeles, Nóra Zsuzsa Kiss, László Hegedűs, Tímea Windt, Véronika Nagy, György Keglevich
AbstractA series of dibenzyl α‐hydroxyphosphonates and the corresponding α‐hydroxyphosphonic acids, mostly new compounds, have been synthesized. The dibenzyl α‐hydroxyphosphonates have been obtained in the Pudovik reaction of substituted benzaldehydes and dibenzyl phosphite in the presence of triethylamine as the catalyst. The amount of the solvent was minimized du...... hiện toàn bộ
AbstractHalogenation of 1,1,2,3,4,5‐hexaphenylstannole was reinvestigated. Reaction of the stannole with 2 equiv. of bromine gave 1‐bromo‐4‐dibromophenylstannyl‐1,2,3,4‐tetraphenyl‐1,3‐butadiene. Reaction of the stannole with iodine gave similar results. Reaction of the stannole with 1 equiv. of bromine or iodine afforded 1‐halo‐4‐halodiphenylstannyl‐1,2,3,4‐tetrap...... hiện toàn bộ
AbstractRibosylated 1,2,3‐triazole 4 and 5 were synthesized in moderate yields by the reaction of aroyl‐substituted heterocyclic ketene aminals 1 or 2 with 2,3,5‐tri‐O...... hiện toàn bộ