Methanal reaction with

Results are shown in Table 3. In all runs methanol has been detected as a sole product and its amount within the experiment error correlates with that of CH4 consumed. It is of interest that methane reaction with a-oxygen ... 

Ring fluorination is observed in reactions of protected aniline derivatives, with the ojp ratio of the products, e.g. 11-13, being dependent on the substituent 5 nitrobenzene is unreactive towards electrophilic substitution. The polymerization process may be studied by di-fluorobis(fluoroxy)methane reactions with variousfluoro-substituted benzene derivatives (hexa-... 

After this preliminary study, we measured the rates of methane reaction with steam (i.e., r values in the r+ > r region), and the rates of carbon monoxide hydrogenation [i.e., ( —r) values in the r+ < region] at 470, 530, 600, and 700°C (84). In these experiments the PCH4 and Pco values did not exceed 0.2 and 0.1 atm, respectively therefore, (27 7) and (278) were applicable. Variations in catalytic activity were taken into account on the basis of control experiments. 

Scheme 5 illustrates the photochemical rearrangement of 4//-1,2-diazepine 23 to 6//-1,4-diazepine 25, which occurs via an aza-di-7i-methane reaction with l,2-diazabicyclo[3.2.0]hepta-2,6-diene 24, as the intermediate <1996CRV3065>. 

FIGURE 15. Effect of substt ate deuteration on the rate of methane reaction with Q. The solid line is the expected relationship if the isotope effect is predominantly primary. The dotted and dashed lines show die ejqiected relationship of die rate constants if there were a secondary isotope effect of 1.2 or 2, respectively. (From Nesheim and Lipscomb, 1996). 

Bis(diphenylphosphino)methane reactions with Co(II) and CO, 174-177 reactions with Fe(in)-LiAlH -CO,... 

In the work reported in this paper, the in-situ hot stage SEM technique has been used to examine the carbon deposits formed in the iron-methane reaction, with the objective of separating the different stages by identifying the characteristic morphologies. 

The results of methane reaction with O2, CO2 and H2O over LaNi(>3 are shown in fig. 9 (overleaf). The negative conversion of CO2 and H2O observed at temperatures lower than 1073 K indicates that both compounds were produced during the process. However, when those conversions were positive, the selectivity based on methane to CO and H2 was close to 100%. The net heat of reaction, AHr, for the overall process is estimated by subtracting the heat of formation of the components in the feed at the reaction temperature from that of the components in the product stream. 

A plano-convex lens was used to collimate and focus, an IR mirror was employed to eliminate non-productive IR irradiation and minimize associated heat, and a variety of UV filters could be employed to control wavelength. After evaluation of 728 reactions, they identified five which were further explored. Examples included a wavelength dependent [2-I-2]-cycloaddition of indole 27 to afford a mixture of indole 28 cyclobutane 29 (Scheme 5A). They observed that the photo-Fries rearrangement was predominant at shorter wavelengths while the [2 -I- 2]-cycloaddition was favoured at longer wavelengths. A second reaction they identified was an oxa-di-7i-methane reaction with bicycle 39 to afford the caged cyclopropane 35 in 70% yield after 2 min (Scheme 5B). In the screen they found both direct excitation and triplet sensitization conditions for the reaction. They also identified a 1,3-acyl shift with ketol 32 to afford cyclohutanone 33 in modest yield (Scheme 5C). This platform demonstrated that flow photochemistry can enable automated reaction discovery. 

Coupling methanation reaction with the SR. In the permeation side of the MR, methanation occurs (Mori, Nakamura, Sakai, Iwamoto, Hattori, 2008). This combination is interesting if the produced hydrogen needs to be used in fuel cells. The methanation will strongly reduce the CO content in the hydrogen stream and also supply a small amount of heat to the reforming reaction. 

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