The reaction process is an acidic electropathic substitution reaction.
In the process of an electropathic substitution reaction, an electrophile (such as a positive ion, Lewis acid, etc.) would attack an organic molecules rich in electrons (such as the aromatic ring), forming a positively charged intermediate (such as a carbon ion on the aromatic ring), and then leaving a photon to complete the substitution reaction. For example, in the Frieder-Crafts alkylations, under the catalyst of a strong Lewis acid (such as dehydrated iron), the halo compound produces a carbon positive ion. This carbon positive ion acts as an electrophile to attack the aromatic ring and replace the hydrogen on the ring. Finally, it produces an alkylaromatics and hydrogen dioxide. In the C-alkylations, which was an acidic electropathic substitution reaction, the hydrogen on the carbon atom of the organic compound was replaced by a radical, and the alkylations (such as alkene, halane, alcohol, aldo, and others) participated in the reaction. Read more exciting novels for free
Activity Order of Electropathic Substitution Reaction of Naphthene and Benz
Naphthene was more prone to electropathic substitution reaction, so the order of electropathic substitution reaction activity was as follows: Naphthene> Benz. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the meaning of the electropathic reaction mechanism of the aldo?
The electropathic reaction was a type of chemical reaction. In the electropathic reaction of an aldo, an electropathic reagent (an electron deficient reagent) attacked the electron rich part of the aldo. Take the electropathic addition reaction between an aldo and an alkene as an example (according to the carbonium intermediate mechanism): the electron cloud density of the pion in the alkene was higher, and it was the part rich in electrons. Due to the strong electron attraction effect of oxygen, the carbonyl-carbon of the carbolic acid had a certain positive electricity and could be used as an electrophile reagent. During the reaction, the carbonyl-carbon of the carbolic acid first approached the electron cloud of the alkene, attracting a pair of electrons to form a carbonium intermediate. During this process, the alkyls acted as electrophiles and attacked the electron rich pi bond of the alkene. After that, other groups (such as the nuclophile) would combine with the carbonium intermediate to complete the reaction. In the nuclophilic addition reaction of an aldo (an aldo can also participate in a nuclophilic reaction, which is opposite to an electrophilic reaction), the carbo carbon of the aldo has a relatively high nuclophilicity. Because of the addition of an electron donating alkyls, the electron density of the carbo carbon is higher than that of the carbo carbon of the aldo. Moreover, the steric hindrance of the ketones is higher than that of the aldo, so the carbo carbon is more likely to undergo a nuclophilic addition reaction than the ketones. This indirectly reflected the characteristics of the carbolic carbon in the reaction and helped to understand the role of the carbolic carbon in the electropathic reaction, because the electronic environment of the carbolic carbon determined its participation in the electropathic reaction and activity. Some organic reactions also involved the electrophilic reaction mechanism of the alkyls. For example, in the Baylis-Hillman reaction, the alkyls were used as electrophiles (the electrophiles in the matrix could be alkyls) to react with the alpha, beta-saturated compounds under the action of a suitable catalyst. This involved the reaction activity of the alkyls as electrophiles and the electron transfer during the reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to write the electropathic reaction equation of an aldo?
In the middle school stage, the electropathic reaction of the alkyls mainly involved the reaction of the alkyls with hydrogen (it could be regarded as a special electropathic reaction, and the hydrogen molecules could be regarded as electropathic reagents in the reaction). For example, the reaction of Cho with hydrogen was: CH Chu + H Chi → CH CH Chi (Reaction condition: heating the catalyst). In this reaction, the alcohol was reduced to alcohol. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction Formula of Substitution Reaction for the addition reaction of organic substances
Additional reaction: - The addition reaction of ethene and Bromine: <<CH2 = CH2 + Br2> - The addition reaction of ethene and hydrogen bromidate was as follows: <CH2 = CH2> - Under certain conditions, addition reactions could also occur between ethene, hydrogen, and water. Since the chemical properties of ethyne (carbon-carbon triple bond) were similar to that of alkene (carbon-carbon double bond), similar addition reactions could also occur. - The aromatic ring can undergo an addition reaction with hydrogen (in the presence of a catalyst such as Ni). - Aldol groups can undergo a reduction reaction (addition reaction), such as: <anno data-annotation-id ="00000000 - 4c00 - 4c00 - 8c00 - 9c00 - 9c000b000000"> CH3CH20H </anno>. Substitution reaction: - The substitution reaction between methane and Cl2: CH4 + Cl2. - The substitution reaction of the aromatic ring: For example, the substitution reaction with the aromatic group using FeBr3 as a catalyst; the nitration reaction with the aromatic group using concentrated sulfuric acid under heating conditions (the hydrogen on the aromatic ring is replaced by the nitrogen group). - The substitution reaction of the halated carbon was as follows: <<CH3CH2Br2>+<NaBr2>>. - The substitution reaction of alcohol: <CH3CH20H>+<br>> longrightarrow <CH3CH2br>+<H2O>> - The ester's cleavage reaction (which can be seen as a substitution reaction):<CH3COOCH2CH3 + H2O> <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction between ethene and alcohol is a substitution reaction
The reaction between ethene and ethanoi was an electropathic addition reaction, not a substitution reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The mechanism of the substitution reaction is
There were two mechanisms for the substitution reaction: 1. ** Bimoleral Nucleic Substitution Reaction (Sn2)**: - This was a bimoleral reaction, and the reaction rate depended on the concentration of the halon and the concentration of the nuclophile. - The reaction was completed in one step. During the reaction process, the central carbon atom of the cleaved carbon dioxide was attacked by the nuclophile and left by the leaving group at the same time, and it would go through a transition state. In the transition state, the nuclophile and the cleaved carbon dioxide were connected by a partial bond, and the leaving group and the cleaved carbon dioxide were also connected by a partial bond. - The reaction process was accompanied by a transformation of the configuration, known as the Walden transformation, which was an important sign of the Sn2 reaction. For example, R - 2 -Bromobutan would be converted to S - 2 -Butanol when 2 -Bromobutan was being digested. 2. ** Unimoleral Nucleophile Substitution Reaction (sn1)**: - The reaction was carried out in two steps. The first step was to undergo a slow reaction of heterocracking of the aromatic compounds to form the active intermediate carbon ions. This step was the step that determined the reaction rate. The second step was to combine the carbon ions with the nuclophile to form a product. - The product was racemized. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Explain the substitution reaction of alkyls
The substitution reaction of alkyls had the following phenomena and characteristics: 1. ** Reaction conditions ** - Requires light (no reaction in the dark at room temperature, but direct light cannot be used, otherwise it will explode). 2. ** Reactants ** - The reagent was a pure elemental gas, such as a gaseous mixture of sulfur and hydrogen. 3. ** Reaction progress ** - The reaction wouldn't stop at a single step. It would proceed step by step, and the final product would be a mixture of many substances. For example, if one hydrogen atom (1 mole of H) was replaced, one mole of Cl2 was needed. It was wrong to think that one Cl2 could replace two H atoms. For example, in the substitution reaction of methane, the atoms in the Cl3 could "seize" a hydrogen atom in the methane, and then compensate a Cl3 atom to the methane to form methachloromethanes. The reaction would continue, gradually forming various products such as methylethylane, methylethylane, and methachloromethanes. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Substitution Reaction of Sodium-ethanate
The reaction between alcohol and Na was a substitution reaction, and the reaction equation was C Chi H Oh + 2Na -> C Chi H ONa + Chi H. In this reaction, the alcohol was replaced by a hydrogen atom, forming a mixture of hydrogen and ethanate. It could be used as a reducing agent, a catalyst, and a catalyst. It could also be used to prepare other compounds such as acetate-ether and acetate-ether. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction equation of alcohol and water under acidic conditions
Alcohol was subjected to the reaction of acidic conditions. The reaction equation was as follows: the ester's carbonyl-group (C=O) combined with hydrogen ions to form a carbonyl-group (C-Oh). The original carbonyl-group carbon was positively charged due to the lack of electrons due to the combination of Pie electrons and hydrogen ions. It was easy to be attacked by a nuclophile (water) to undergo the reaction of alcohol. However, the reference materials did not clearly give the specific reaction equation, so they could not accurately provide a complete chemical equation for the reaction of alcohol and water under acidic conditions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Mixed reaction of hydrogen peroxid and acidic hydrogen iodinate
The mixture of hydrogen peroxide-hydrogen peroxide-acid and hydrogen iodinate-acid would result in an oxido-reduction reaction. The reaction equation is [H2O2 + 2Hi]. In this reaction, the valency of the oxygen element in the hydrogen peroxid decreased from-1 to-2, showing its oxidisation, while the valency of the iodine-element in the hydrogen iodinate increased from-1 to 0, showing its reduction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>