nucleophilic substitution उदाहरण वाक्य

उदाहरण वाक्य

1. Aryl iodides are in turn used to attach aryl groups to other organics by nucleophilic substitution, with iodide ion as the leaving group.
2. The calculated pi-electron density marks C5 as the primary site for electrophilic substitution, and C2 as the site for nucleophilic substitution.
3. These compounds react through a chlorine group with hydroxyl groups present in cellulose fibres in nucleophilic substitution, the other triazine positions contain chromophores.
4. At the same time, as part of a concerted nucleophilic substitution mechanism ( S N 2 ), the iodide leaving group departs.
5. The amine can attack the oxirane due to formation of tertiary carbocation in a nucleophilic substitution SN1 concerted elimination of one atom of chlorine.
6. It has been found that tetrahedral ionic compounds of the type R 3 PX 2 continually undergo a racemising degenerate nucleophilic substitution in polar solutions.
7. PhSeNa is a useful nucleophile used to introduce the phenylselenyl group by nucleophilic substitution of alkyl halides, alkyl sulfonates ( mesylates or tosylates ) and epoxides.
8. Bromine itself can be used, but due to its toxicity and volatility safer brominating reagents are normally used, such as reductive coupling, and nucleophilic substitution.
9. The alcohol first reacts with " o "-nitrophenylselenocyanate and tributylphosphine to form a selenide via a nucleophilic substitution on the electron-deficient selenium.
10. Electrophilic substitution is the counterpart of the nucleophilic substitution in that the attacking atom or molecule, an electrophile, has low electron density and thus a positive charge.