Abstract
The Rh–ReO x /SiO 2 (Re/Rh = 0.5) exhibited high activity in the hydrogenolysis of ethers with an OH group. The C O bond neighboring CH 2OH group was selectively dissociated: The hydrogenolysis of tetrahydro-5-methyl-2-furfuryl alcohol and 2-isopropoxyethannol gave 1,5-hexanediol and ethanol + isopropanol, respectively. This tendency suggests the regioselective C O dissociation mechanism via anion intermediate formed by the attack of hydride and the subsequent protonation of the anion.
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