Organosilicon Entry to the Regioselective Cyanomethylation of Quinolinium Methiodides

Bis(trimethylsilyl)ketene Acetals as C,O‐Dinucleophiles: One‐Pot Formation of Polycyclic γ‐ and δ‐Lactones from Pyridines and Pyrazines

“…Three carbonyl groups (signals at at δ = 153.84, 163.83 and 172.46 ppm) are present in this compound, which also shows high-and low-field signals at δ = 17.93 and 84. 47 ments are in agreement with structure 71b, in which the lactone bridges the carbamate group, so no vinylogous addition of iodine to the dihydropyridine carbon-carbon double bond of 43b took place.…”

“…As already established for carbon nucleophiles, [47,48] the ketene acetal 7a gave a single C-2 addition product 51a in 90 % yield with quinoline (50) (Scheme 16). However, 7b and 7f gave separable mixtures of the C-2 and C-4 isomers, their respective ratios depending on the natures of the substituents (Scheme 17).…”

Comparison of the synergistic effect of counterions on the inhibition of mild steel corrosion in acid solution: electrochemical, gravimetric and thermodynamic studies

“…1. Compounds 1 and 2 were prepared according to the general procedures known from the literature, 27,28 except that ethanol was used as the solvent instead. Keeping the ratio of quinoline to benzyl bromide at 1 : 1.1 ought to have provided the best conditions for the synthesis of 1.…”

Six‐Membered Heterocycles: Quinoline and Isoquinoline

“…A regioselective route to cyanomethyl-1,2-dihydro-N-methylquinolines has been published and this process starts from methylquinolinium iodide and tris(trimethylsilyl)acetonitrile in the presence of fluoride [226].…”