Process for producing compounds, including triptane by an alcohol coupling reaction

A method to obtain seven-carbon compounds with three methyl branches, wherein the method comprises:

• coupling a six-carbon oxygen compound with two methyl branches by a reaction with a one-carbon oxygen compound, resulting in a seven-carbon oxygen compound with three methyl branches;
• and
• deoxygenating the seven-carbon oxygen compound with three methyl branches resulting in a seven-carbon hydrocarbon with three methyl branches;
• wherein the catalyst of the reaction between the oxygenated compounds is heterogeneous, combining a hydrogenating/dehydrogenating function with a basic function, wherein a majority of the resulting seven-carbon hydrocarbons with three methyl branches are triptane.