Which reaction involves two key regulatory processes?

Mainly the main reaction. Or the author can give an example.

o-Nitrotoluene, methanol, and H2 undergo a rearrangement reaction under Pt/C catalysis to generate 2methyl-4-methoxyaniline.

See the picture above for the reaction formula.: 1. Involving -O-alkylation (reactions that introduce alkyl groups onto carbon, nitrogen, oxygen and other atoms in organic compound molecules are called alkylation reactions. The process involving alkylation reaction is alkylation process, which can be divided into C-alkylation reaction, N-alkylation reaction, O-alkylation reaction, etc. ) 2. Involving hydrogenation (definition: Hydrogenation is a reaction in which hydrogen atoms are added to organic compound molecules. The process involving hydrogenation reaction is hydrogenation process, which mainly includes hydrogenation of unsaturated bonds, hydrogenation of aromatic ring compounds, hydrogenation of nitrogen-containing compounds, hydrogenation of oxygen-containing compounds, hydrogenolysis, etc. )

Writing involves both, and integrating the control requirements of the two hazardous chemical processes when doing it.

Typical processes for hydrogenation of hazardous chemical processes are as follows:: (1) Hydrogenation of triple bonds and double bonds of unsaturated alkynes and alkenes, hydrogenation of cyclopentadiene to produce cyclopentene, etc. (2) Hydrogenation of aromatic hydrocarbons and hydrogenation of benzene to form cyclohexane ； Hydrogenation of phenol produces cyclohexanol, etc. (3) Hydrogenation of oxygenated compounds and hydrogenation of carbon monoxide to produce methanol ； 23 Hydrogenation of butyraldehyde to produce butanol ； Octenal is hydrogenated to produce octanol, etc. (4) Hydrogenation of nitrogen-containing compounds and hydrogenation of adiponitrile to produce hexamethylenediamine ； * * * Catalytic hydrogenation to produce aniline, etc. (5) Oil hydrotreating and distillate hydrocracking to produce naphtha, diesel and tail oil ； Residual oil hydrogenation and modification ； Hydrogenation and Upgrading of Vacuum Distillate Oil ； Catalytic (isomerization) dewaxing produces low-pouring diesel, lubricating base oil, etc. The typical alkylation process is as follows: (1) C-alkylation reaction of ethylene, propylene and long-chain α-olefins to prepare ethylbenzene, cumene and higher alkylbenzenes ； Preparation of higher alkyl benzene from benzene series and chlorinated higher alkanes under the action of catalyst ； Preparation of Symmetric Diarylmethane Derivatives from Aliphatic Aldehydes and Aromatic Derivatives ； Phenol and propylene are synthesized under acid catalysis to prepare 2,2-p-(p-hydroxyphenyl)propane (commonly known as bisphenol A) ； The alkylation reaction of ethylene and benzene produces ethylbenzene, etc. (2) N-alkylation reaction of aniline and methyl ether to produce benzylamine ； Production of phenylaminoacetic acid from aniline and chloroacetic acid ； Preparation of N,N-bis from aniline and methanol * * amine ； Preparation of N,N-dialkyl aromatic amines from aniline and ethyl chloride ； Preparation of N,N-dimethyl p-toluidine from p-toluidine and dimethyl sulfate ； Preparation of N-(β-hydroxyethyl)aniline from ethylene oxide and aniline ； Preparation of ethanolamine compounds from ammonia or fatty amines and ethylene oxide ； Aniline reacts with acrylonitrile to prepare N-(β-cyanoethyl)aniline, etc. (3) O-alkylation reaction of hydroquinone, sodium hydroxide aqueous solution and methyl chloride to prepare terephthalate ； Preparation of anisole from dimethyl sulfate and phenol ； The addition of higher fatty alcohols or alkylphenols to ethylene oxide produces polyether products, etc. The process you are talking about should be a typical hydrogenation process. For reference only

This reaction should be carried out in two steps, right? If it is completed in a reactor, then the most stringent of the two dangerous processes must be considered for automatic control design....