Green organic synthesis, organic chemical synthesis

Summary. No, the temperature of the synthesis reaction of organic matter is generally not too high, and too high a temperature may lead to the instability of the reaction products and the slowing down of the reaction rate.

No, the temperature of the synthesis reaction of organic matter is generally not too high, and too high a temperature may lead to the instability of the reaction products and the slowing down of the reaction rate.

Teacher: Is there any other way to heat 500 degrees Celsius to control the temperature?

Is there any instrument that can control the temperature of 500 degrees?

The use of alcohol blowtorch, this teacher went to see it, it is sold on the Internet, and there are also special alcohol blowtorches for chemistry experiments.

Teacher, is this okay?

Is it okay for the teacher to specialize in alcohol lamp cores?

This one is okay.

Yes, 1 mole of chlorvibra bromide and 1 mole of propylene can be reacted in a 500 degree furnace. This scab reaction produces an organic substance, vinyl chloride.

I'd better recommend an alcohol blowtorch anyway.

I understand that a temperature of 500 degrees is required for the reaction, and heating produces other organic matter.

The reaction temperature of organic matter synthesis is generally not too high, and too high temperature may lead to the instability of reaction products and the slowing down of the early reaction rate. Because organic matter will be divided into clever and delicate solutions in a high-temperature environment, and will not produce other filial piety rock machine materials.

The teacher just said that it was in the stove.

This is the case of the alcohol lamp.

Thank you, teacher. After the teacher reacts with ammonia and hydrogen peroxide at 200 degrees, add organic matter without cold.

Or add organic matter to keep warm for 7 hours in the case of heat.

Yes, the reaction should be cooled to room temperature before adding the organics to prevent the organics from decomposing prematurely.

In the case of a hot silver hall, it is not recommended to add organic disturbance to keep the body warm for 7 hours, because the organic matter will decompose in a slow state in a high temperature environment, and no other organic matter will be produced.

Uh-huh, thank you, teacher.

The same is true for ionization reactions, does H+BR need to be cooled before being added?

Yes, the ionization reaction needs to be cooled before H+BR can be added.

Can the teacher's electric heating jacket reach 500 degrees for electrophilic reaction?

Yes, the electric heating jacket can reach 500 degrees, so that the electrophilic reaction can be done.

Teacher: If you control the temperature at 500 degrees Celsius, there will be no by-products, right?

Yes, if the temperature is kept below 500 degrees, there will be no by-products.

Is the teacher above 500 degrees or below?

There will be a temperature difference of just 500 degrees.

Just about. Below 500 degrees, preferably not more than 500 degrees.

Hello, Organic Synthetic Chemistry is a major field of study in the study of new methods of imitation for the synthesis of organic compounds. Unlike inorganic chemistry, in organic chemistry, more complex compounds are synthesized from simple organic compounds by combining methods such as functional group conversion and C-C bond formation. In other words, the compound of interest is synthesized according to a synthesis plan (also known as a synthesis strategy), which consists of a closed combination of multiple chemical reactions, such as the characteristics and order of application of the chemical reaction to be used to make the hitching, and depends on the synthesis plan.

The desired compounds may or may not be obtained. <>

Organic synthesis: refers to the process of synthesizing organic substances from simple compounds or elements through chemical reactions. It also sometimes involves the process of degradation from complex feedstocks to simpler compounds.

Analytical Methods for Organic Synthesis:

1. The method of organic synthesis includes forward synthesis analysis and reverse synthesis analysis.

2. Forward synthesis Buxiang analysis method is to start from the known raw materials, find out the direct or indirect intermediates required for synthesis, and gradually push them to the target organic matter for synthesis.

3. Reverse synthesis analysis is a common method for designing complex compounds. It is to take the target compound backwards one step to find the intermediate of the previous reaction, and this intermediate can be obtained from the intermediate of the previous step, and so on, and finally determine the most suitable basic raw material and the most.

The synthetic route of green chemistry is mainly the following three points:

1.In the process of organic matter synthesis, the prevention and control of pollution is better than the pollution generated.

2.Considering the atom economy (the synthesis method should be designed to convert as much of the material used in the reaction process as possible into the final product), that is, the utilization rate of atoms reaches 100.

3.Consider the environmental and economic impact of energy consumption, and use energy as little as possible (at room temperature and pressure).

Green chemistry is a discipline that studies the use of modern scientific and technological principles and methods to reduce or eliminate the use and production of harmful substances in the design, production and application of chemical products, so as to make the research and development of chemical products and processes more environmentally friendly. Green chemistry is the use of chemical methods to reduce the use of chemical raw materials to avoid human health and environmental pollution, and Minqing aims to reduce pollution at the source.

<>1. Acetyl-Coa enters the tricarboxylic acid cycle: acetyl Coa has a thioester bond, and the acetyl group has enough energy to carry out aldol-type condensation with the carboxyl group of oxaloacetate;

2. Isocitrate formation: the tertiary alcohol group of citric acid is not easy to oxidize, and it is easy to oxidize when it is converted into isocitrate and turns the tertiary alcohol into secondary alcohol, which is catalyzed by cis-aconitase;

3. The first oxidative decarboxylation: this reaction is the rate-limiting step in the tricarboxylic acid cycle, ADP is the activator of isocitrate dehydrogenase, and NADH is the inhibitor of this enzyme;

4. Second oxidative decarboxylation: the alpha ketoglutarate dehydrogenase complex is inhibited by ATP, GTP, NADH and succinyl CoA;

5. Substrate phosphorylation to generate ATP: under the action of sulfur kinase succinate, the thioester bond of succinyl CoA is hydrolyzed, and the released free energy is used to synthesize GTP;

6. Succinate dehydrogenation: succinate dehydrogenase catalyzes the oxidation of succinic acid to fumarate;

7. Hydration of fumarate: fumarate enzyme only acts on the trans double bond of fumarate, but has no catalytic effect on maleic acid.

8. Oxaloacetate regeneration: under the action of malate dehydrogenase, the secondary alcohol group of malate is dehydrogenated to carbonyl group to generate oxaloacetate.

Organic chemistry, also known as the chemistry of carbon compounds, is a science that studies the composition, structure, properties, preparation methods and applications of organic compounds, and is an extremely important branch of chemistry. Carbonaceous compounds are called organic compounds because chemists in the past believed that carbonaceous substances must be made by living organisms. Organic chemistry is mainly the science of introducing chemical substances (some organic chemistry courses are also involved in high school chemistry studies).

The classification of organic chemicals is mainly based on the difference in the groups that can represent chemical substances according to their decisive role, that is, functional groups. It can be divided into: alkanes, olefins, alkynes, aromatic hydrocarbons (the above are hydrocarbons); Halogenated hydrocarbons, alcohols, phenols, ethers, aldehydes, ketones, carboxylic acids, carboxylic acid derivatives, amines, nitro compounds, nitriles, sulfur-containing organic compounds (such as mercaptans, thioethers, thiophenols, sulfonic acids, sulfones and sulfoxides, etc.), phosphorus-containing organic compounds and other elemental organic compounds, heterocyclic compounds, etc. (the above are hydrocarbon derivatives).

Specifically, it mainly introduces the systematic nomenclature, chemical reaction, reaction mechanism, and preparation methods of these chemical substances. Among them, the chemical reaction is basically the substitution of groups, and whether a reaction can be carried out depends on two factors: thermodynamics and kinetics. The preparation method is mainly through inorganic substances, petroleum extracts, and substances that are easy to prepare or low-cost substances that are difficult to obtain.

The reaction mechanism is also a competition between groups for offensive and departing tendencies.

<> this synthesis is short, it should be fine.

The first step is Michael addition catalyzed by cuprous iodide with Grignard reagent, the second is the Wittig reaction, and the third is the 2+4 cycloaddition reaction of Diels-Alder.

First of all, the five rings and six rings that are screwed up are definitely two cyclopentanones.

O-glycol is generated by mg (solvent benzene) (aldehydes and ketones in the organic book have this reaction), and then pinacol is rearranged and then Zn-Hg HCl is reduced to this.

Let one of them be bromocyclopentanone.

and a halocyclohexane by Grignard reagent.