New loop opening hydrogenation reaction method for furan derivant

Abstract

The invention aims at providing a new loop opening hydrogenation reaction method for furan derivant, which changes a reaction way by changing the traditional mechanism of catalytic reaction, realizes transformation from the traditional way of hydrogenation first and ring opening secondly to the way of ring opening first and hydrogenation secondly, and reduces the activation energy of reaction, thus greatly reducing reaction pressure and cost, alleviating operation difficulty, and have good industrial application prospect.

Description

technical field [0001] This patent relates to a new method for ring-opening hydrogenation reaction of furan derivatives. Background technique [0002] The five atoms on the furan ring are SP 2 Hybridization, the five atoms are on the same plane, and the lone pair of electrons on the heteroatoms participates in conjugation to form a conjugated system with aromaticity, which makes this five-membered heterocyclic system relatively stable. Generally, the hydrogenation ring-opening reaction of the five-membered heterocyclic ring system is: hydrogenation is first performed on the two double bonds on the heterocyclic ring, and then further hydrogenolysis is performed to form a ring-opened product: [0003] [0004] However, the tetrahydrofuran structure obtained by hydrogenation in the first step is also very stable, and the reaction conditions for the hydrogenolysis reaction in the second step are extremely harsh. Take furfuryl alcohol as an example for further explanation be...

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Problems solved by technology

(Chemical Communications, 2009, 2035-2037) But this relatively mild reaction condition is still relatively harsh

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