substitution reaction


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Related to substitution reaction: addition reaction, elimination reaction
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substitution reaction

n (Chem) → reazione f di sostituzione
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Nucleophilic substitution reaction of propargylamine with chloroacetamide (33a-e) afforded alkynylated products (34a-e), which upon subjection to Cu (I), catalyzed click chemistry with AZT, afforded coumarin-AZT (31) conjugates (35a-e).
These results suggest that the nucleophilic substitution reaction between covalent bonds (Si-O) of nano-ppy/OMMT and HF derived from LiP[F.sub.6] can move and bend [37, 38].
In the following substitution reaction, the thermal reaction energies are endothermic:
On the second step, DOPO-PHM was obtained by the substitution reaction between DOPO-HB and aniline at 130[degrees]C for 12 h using p-TSA as a catalyst.
The first mechanistic proposal for the process of phase-transfer catalysis was formulated by Starks [1, 3] for a liquid-liquid system (LL-PTC) using a nucleophilic substitution reaction (Scheme 1).
The basis of any chemical substitution reaction is the destruction of the initial atomic linkage and formation of new atomic linkage, which results in new substance, i.e.
Next, she coated the surface with a layer of copper through copper electrochemical precipitation before its thermodynamic potential (UPD).The galvanic substitution reaction between copper and platinum took place as a result and she succeeded in producing a gold electrode with a nanometric porosity, which is coated with a single layer of platinum.
In another study, TFR was exploited to carry out nucleophilic aromatic substitution reaction of nitrobenzene by a strong nucleophile like anilide salt of tetramethylammonium ion to give p-nitroso or nitro diphenylamine in a continuous manner.
Additionally, 0.5 g of [K.sub.2]C[O.sub.3] and 0.05 g of 18-crown-6 were added to assist in the substitution reaction and removing the HCl as it formed.
Acylated low molecular weight chitosan were synthesized from the nucleophilic acyl substitution reaction of chitosan and acid anhydrides include butyric, hexanoic, octanoic and decanoic anhydride, as shown in the Fig.