Nucleophilic dearomatization of activated pyridines

G Bertuzzi, L Bernardi, M Fochi - Catalysts, 2018 - mdpi.com
Amongst nitrogen heterocycles of different ring sizes and oxidation statuses,
dihydropyridines (DHP) occupy a prominent role due to their synthetic versatility and …

Direct C–H Sulfonylimination of Pyridinium Salts

L Luo, J Tang, R Sun, W Li, X Zheng, M Yuan… - Organic …, 2022 - ACS Publications
A direct pyridinium C–H sulfonylimination has been developed for the synthesis of sulfonyl
iminopyridine derivatives with high efficiency. This transformation features the direct and …

Synthesis, characterization and computational studies for (2′S*,3R*,3′S*,8a′R*)‐2′,3′‐bis(ethoxycarbonyl)‐2‐oxo‐2′,3′‐dihydro‐8a′H‐spiro[indoline‐3 …

AAA Almutaleb, AA Alabbasi - Journal of Physical Organic …, 2023 - Wiley Online Library
In this article, we present advances related to 1, 3‐dipolar cycloadditions of generated
pyridinium ylides and apply these results to specific 1, 3‐dipolar cycloaddition reactions with …

Computational and spectral means for characterizing the intermolecular interactions in solutions and for estimating excited state dipole moment of solute

DO Dorohoi, DE Creanga, DG Dimitriu, AC Morosanu… - Symmetry, 2020 - mdpi.com
The results obtained both in quantum chemical computation and in solvatochromic study of
pyridinium di-carbethoxy methylid (PCCM) are correlated in order to estimate the electric …

[HTML][HTML] Ultrasound-promoted regioselective synthesis of chalcogeno-indolizines by a stepwise 1, 3-dipolar cycloaddition

MM Vieira, BT Dalberto, FL Coelho… - Ultrasonics …, 2020 - Elsevier
A series of new organochalcogen derivatives of indolizines was synthesized in moderate to
excellent yields from pyridinium salts and chalcogeno-alkynes. The reaction can be carried …

Reactions of 3а, 6a-diaza-1, 4-diphosphapentalene with activated acetylenes

AN Kornev, VE Galperin, YS Panova, VV Sushev… - Russian Chemical …, 2018 - Springer
The reaction of cyclohexane-annulated 3 a, 6a-diaza-1, 4-diphosphapentalene (DDP) with
di-tert-butyl acetylenedicarboxylate (DBAD) affords the 1, 3-dipolar cycloaddition product of …

[PDF][PDF] Взаимодействие 3а, 6а-диаза-1, 4-дифосфапенталена с активированными ацетиленами

АН Корнев, ВЕ Гальперин, ЮС Панова… - Известия Академии …, 2018 - russchembull.ru
Взаимодействие циклогексан-аннелированного 3a, 6a-диаза-1, 4-дифосфапенталена
(DDP) с (ди-трет-бутил) ацетилендикарбоксилатом (DBAD) приводит с выходом 90% к …