F Butyraldehyde

Azidobenzaldehyde, 2697 f Benzaldehyde, 2731 f Butyraldehyde, 1607 Chloroacetaldehyde oxime, 0787 2-Chloro-6-nitrobenzaldehyde, 2650... 

Acetoxy-3-methoxy-2-nitrobenzaldehyde, 3260 4-Acetoxy-3-methoxybenzaldehyde, 3284 f Acrylaldehyde, 1142 4-Azidobenzaldehyde, 2693 f Benzaldehyde, 2727 f Butyraldehyde, 1602 5 -Chloro-2-nitrobenzaldehyde, 2648 4-Chloro-3-nitrobenzaldehyde, 2647... 

Fig. 9. Dependence of relative molar concentrations Wj/nA0 of reaction components on reciprocal space velocity W/F (hr kg mole 1) in the parallel-consecutive hydrogenation of crotonaldehyde. Temperature 160°C, catalyst Pt-Fe/Si02 (1% wt. Pt, 0.7% Fe), initial molar ratio of reactants G = 10. The curves were calculated (1—crotonaldehyde, 2—butyraldehyde, 3—crotyl alcohol, 4—butanol) the points are experimental values.

Butyraldehyde oxime, 1655 Carbon, Unsaturated oils, 0298 Chlorine, Carbon disulfide, 4047 f l-Chloro-2,3-epoxypropane, Contaminants, 1162 Cyanogen chloride, 0323... 

C. J. Dickenson and F. M. Dickinson, A study of pH and temperature dependence of the reaction of yeast alcohol dehydrogenase with ethanol, acetaldehyde and butyraldehyde, Biochem. J., 147, 303-311 (1975). 

To make butyraldehyde, the precursor for NBA, the so-called Oxo process is used, reacting chemical grade propylene with hydrogen and. carbon monoxide at 250-300°F and 3500-4000 psi. See Figure 14-4.) Under those conditions, both feeds are liquids. The catalyst is an oil-soluble cobalt carbonyl complex dissolved in the propylene. If rhodium-based catalysts or complexes based on rhodium carbonyls and triphenyl phosphine... 

Jones, J.H. and McCants, J.F. Ternary solubility data. 1 -Butanol-methanol 1-butyl ketone-water, 1-butyraldehyde-ethyl acetate-water, 1-hexane-methyl ethyl ketone-water, Ind. Eng. Chem., 46(9) 1956-1958, 1954. 

The next aldehyde is acetaldehyde, a colorless liquid with a pungent taste and a fruity odor. Its molecular formula is CH,CHO. It has a flash point of -40°F, an ignition temperature of 340°F, and is toxic by inhalation. Acetaldehyde is used in die manufacture of many other chemicals. Other important aldehydes are propionaldehyde, butyraldehyde, and acrolein. 

Ammonium perchlorate, Impurities, 3998 Azidoacetic acid, 0770 f Aziridine, Acids, 0859 Benzoyl azide, 2694 Benzyl chloroformate, 2926 1,2-Bis(difluoroamino)-/V-nitroethylamine, 0799 Bromine trioxide, 0259 2-Butanone oxime, 1649 2-Butyne-l,4-diol, 1523 Butyraldehyde oxime, 1650 Carbon, Unsaturated oils, 0297 Chlorine, Carbon disulfide, 4041 f l-Chloro-2,3-epoxypropane, Contaminants, 1158 Cyanogen chloride, 0322 Diethyl phosphorochloridate, 1675 f 1,1-Difluoroethylene, 0696... 

To develop new methods for organic synthesis, Woerpel and coworkers exploited the inherent reactivity of di -fc/ f-butylsilacyclopropanes to create new carbon-carbon bonds in a stereoselective fashion (Scheme 7.7).62 They discovered that transition metal salts catalyze the insertion of carbonyl compounds into the strained carbon-silicon bond to form oxasilacyclopentanes. The regioselectivity of insertion could be controlled by the identity of the catalyst. Copper promoted the insertion of croto-naldehyde into the more substituted C-Si bond of 52 to afford oxasilacyclopentane 53,63 whereas zinc catalyzed the insertion of butyraldehyde into the less substituted bond of 52 to provide the complementary product, 54.64 Oxasilacyclopentanes (e.g., 55) could be transformed into useful synthetic intermediates through oxidation of the C-Si bond,65 66 which provided diol 56 with three contiguous stereocenters. 

Tsuji, H., Yagi, F., Hattori, H. and Kita, H. Self-condensation of n-butyraldehyde over solid base catalysts, J. Catal., 1994, 148, 759-70. 

The first stage of the process is a hydroformylation (oxo) reaction from which the main product is n-butyraldehyde. The feeds to this reactor are synthesis gas (CO/H2 mixture) and propylene in the molar ratio 2/f, and the recycled products of isobutyr-aldehyde cracking. The reactor operates at f30°C and 350 bar, using cobalt carbonyl as catalyst in solution. The main reaction products are n- and isobutyraldehyde in the ratio of 4 f, the former being the required product for subsequent conversion to 2-ethylhexanol. In addition, 3% of the propylene feed is converted to propane while some does not react. 

Acid-catalysed Formation of Monoacetals from n-Butyraldehyde and Certain D-Glu-citol Derivatives, T. G. Bonner, E. J. Bourne, P. J. V. Cleare, R. F. J. Cole, and... 

A soln. of acrolein in benzene dropped at a moderate rate into a suspension of ethyl acetamidomalonate in benzene containing a catalytic amount of Na-methoxide, stirred 2 hrs. longer, and isolated as the phenylhydrazone —y-acetamido-y,y-dicarbethoxy-butyraldehyde phenvlhydrazone. Y 87%. (F. e. s. O. A. Moe and D. T. Warner, Am. Soc. 70, 2763 (1948) 71, 2586 (1949).)... 

Butyraldehyde added with vigorous stirring to a suspension of ethyl oxalacetate Na-enolate in abs. alcohol, whereby the temp, rises to ca. 40°, and worked up after 16 hrs. —a-keto-/ -carbethoxy-y-M-propyl-y-lactone (startg. m. f. 86). Y 71%. (F. e. s. H. Schinz and A. Rossi, Helv. 31,1953 (1948).)... 

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