Method for synthesizing adamantane from tetrahydrodicyclopentadiene

Abstract

The invention relates to a method for synthesizing adamantane from tetrahydrodicyclopentadiene. The method comprises the following steps: reacting anhydrous AlCl3 with alkyl tertiary amine, alkyl imidazole and alkyl pyridine to prepare chloroaluminate room-temperature ionic liquid as a catalyst; continuously using the catalyst with reduced activity after activation treatment; respectively pumpingthe catalyst and the bridge-type tetrahydrodicyclopentadiene into a micro-tube reactor by using a metering pump, and partially converting to generate adamantane; and feeding the material discharged from the reactor into a cylindrical separation container, performing standing for layering, transferring the upper-layer oil-phase material into a crystallizer, performing cooling to separate out adamantane crystals, returning mother liquor to be continuously used as a starting raw material, and returning a lower-layer catalyst to be continuously used. The method has the characteristics of process link simplification, the high product yield, continuous production and the like.

Description

technical field [0001] The invention relates to a synthesis method of adamantane, in particular to a reaction method for synthesizing target product adamantane from tetrahydrodicyclopentadiene as a starting material through catalytic isomerization reaction. Background technique [0002] The chemical name of Adamantane is tricyclic [3,3,1,13,7] decane, which is a cyclic tetrahedral hydrocarbon composed of 10 carbon atoms and 16 hydrogen atoms. Due to its symmetry and rigidity, adamantane has relatively stable properties. In addition, the hydrogen atoms in its molecule are prone to SN1-type nucleophilic substitution reactions and SE2-type electrophilic substitution reactions, resulting in a variety of derivatives, making it widely used in medicine, Functional polymer materials, lubricants, surfactants, catalysts, etc. have a wide range of uses. [0003] At present, the industrialized adamantane synthesis methods at home and abroad all use bridged tetrahydrodicyclopentadiene a...

AI Technical Summary

Problems solved by technology

However, this method still directly uses aluminum trichloride as a catalyst, and there is still a problem that a large amount of hydrogen chloride gas needs to be absorbed and disposed of during the treatment of a large amount of deactivated aluminum trichloride, and the reaction operation is carried out intermittently in the reactor, and the operation process is more cumbersome.