Olefins dehydrodimerization

Anodic dehydrodimerization and additive dimerization of electron-rich olefins. 

Dehydrodimerization of Cyclic Enol/Allyl Ethers and Olefins... 

B. Dehydrodimerization of cyclic enol/allyl ethers and olefins... 

Methanol dehydrogenates to methyl formate over fresh WC and P-W2C powders with selectivities higher than 90% (109,110). The dominant side reaction is the decomposition to synthesis gas. Over WC and P-W2C modified with oxygen, methanol selectively dehydrates to dimethylether at 473 K and at higher reaction temperatures, C2-C4 olefins are produced (47). Thus, the dehydrodimerization of methanol apparently requires WC sites. These sites are titrated by chemisorbed oxygen. Thus, oxygen on the surface inhibits the formation of methyl formate and introduces a surface acid function WO that catalyzes dehydration by carbenium-ion type catalysis. 

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See also in sourсe #XX -- [ , , , , , , , , ]

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