Hydrogen capability

In earlier studies [f J], it was shown that pentafluorobenzene has an acidic aryl hydrogen capable of metalation by organolithium or organomagnesium compounds to yield perfluorophenylorganometallic compounds... 

Can nuclear power be a safe and economical source of hydrogen capable of attracting enough investment capital to build so many new plants ... 

This appears to be related to the availability of allylic hydrogens capable of approaching a position orthogonal to the olefinic plane, thus favoring the ene reaction [40]. Attempts to control the diastereoselectivity with a hydroxy group next to Cl lead to moderate facial selectivity (Sch. 29) [lOd], and similar results have been found in semicyclic dienes with the hydroxy group next to C2 [40] of the diene moiety. 

For comparison in dimensions, Figure 8 shows two of the UTC reformer shells representing a hydrogen production capacity of 6 to 8 million scf/day superimposed to scale on a photograph of a conventional top fired reformer with the same total hydrogen capability. 

Solutes containing hydrogen capable of forming hydrogen bonds dissolve in solvents capable of accepting hydrogen bonds and vice versa. 

When two hydrogens capable of being displaced by lithium are present, lithiation occurs predominantly at that position which carries the most acidic hydrogen . ... 

The fact that Pt has a high alkene hydrogenation capability has lead to a considerable amount of research being undertaken on a less active metal, Cu. This, combined with the ability of sulphur to promote the formation of unsaturated alcohol by the formation of (5+ sites on the active surface as described earlier, lead to an in-depth study by Hutchings and Rochester.20-26 Some important points are illustrated in Table 9.2. 

At this point, there is at hand for the catalyst no hydrogen capable of dehydrogenation, whereas it is available for alcohol and aldehyde (but not for acetic acid), and the catalyst assumes the potential of the remaining molecular oxj gen present. These observations support the dehydrogenation mechanism for catalytic oxidation. 

Rhodium has very little hydrogenation capability, which minimises by-product formation. (Cobalt is an alternative hydrogenation catalyst, which leads to significant alcohol formation and causes the formation of acids and esters including formates). 

Here we disclose procedures for the one-step conversion of acetone-rich feed streams to DIPE using novel, dual-functional, catalyst systems that incorporate both ketone hydrogenation capabilities in addition to dehydration activity. DIPE one-step synthesis has been demonstrated in continuous unit equipment using three types of catalyst bed/reactor configurations. 

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