ESR Studies of Free Radicals Condensed from Vapors of Acetone, Ethylene, Methyl Alcohol, Ethyl Alcohol, andtert-Butyl Alcohol after Irradiation by 1 Mev. He+Ions

1968 ◽  
pp. 163-175 ◽  
Author(s):  
W. A. SEDDON ◽  
D. R. SMITH
Keyword(s):  
Free Radicals ◽  
Ethyl Alcohol ◽  
Methyl Alcohol ◽  
Butyl Alcohol ◽  
Alcohol Ethyl

scholarly journals Slow oxidations at high pressures I—Methane and ethane, II—Methyl alcohol, ethyl alcohol, acetaldehyde, and acetic acid

1934 ◽  
Vol 147 (862) ◽  
pp. 555-571 ◽  
Keyword(s):  
High Pressure ◽  
Acetic Acid ◽  
Optimum Condition ◽  
Ethyl Alcohol ◽  
Methyl Alcohol ◽  
High Pressures ◽  
Hydrocarbon Gases ◽  
Hydrocarbon Combustion ◽  
Liquid Products ◽  
Alcohol Ethyl

In two recent papers from these laboratories it was shown that when methane- and ethane-oxygen mixtures containing excess of the hydrocarbon react at high pressure various liquid products can be isolated. For methane-oxygen mixtures methyl alcohol and water are found, and for ethane-oxygen mixtures ethyl alcohol, acetaldehyde, methyl alcohol, acetic acid, formic acid, and water. These products being important for the light they throw on the mechanism of hydrocarbon combustion and because they suggest means for using waste hydrocarbon gases, further experiments have now been made with the object of finding the order of their formation and the optimum condition for their survival.

Reactions of nitro sugars. XI. Formation of 2,3-unsaturated hexonolactones by denitration of methyl deoxynitroglycosides

1969 ◽  
Vol 47 (15) ◽  
pp. 2811-2818 ◽  
Author(s):  
Hans H. Baer ◽  
Werner Rank
Keyword(s):  
Aluminum Oxide ◽  
Ethyl Alcohol ◽  
Methyl Alcohol ◽  
Crystalline Form ◽  
Unsaturated Lactone ◽  
Alcohol Ethyl ◽  
Basic Aluminum

Treatment of methyl 4,6-O-benzylidene-3-deoxy-3-nitro-β-D-glucopyranoside (1) and its α-anomer (3), as well as of methyl 4,6-O-benzylidene-2,3-dideoxy-3-nitro-β-D-erythro-hex-2-enopyranoside (2) and its α-anomer (4), with basic aluminum oxide in refluxing toluene, leads to loss of the nitro and glycosidic methoxyl groups. As a common product an α,β-unsaturated lactone, 4,6-O-benzylidene-2,3-dideoxy-D-erythro-hex-2-enono-1,5-lactone (5), was isolated in crystalline form. The β-D-manno isomer (6) of 1 incurs epimerization to 1 and partial conversion to 5. Methyl 4,6-O-benzylidene-3-deoxy-3-nitro-β-D-galacto-pyranoside (7) and methyl 4,6-O-benzylidene-2,3-dideoxy-3-nitro-β-D-threo-hex-2-enopyranoside (8) similarly yield a crystalline lactone, 4,6-O-benzylidene-2,3-dideoxy-D-threo-hex-2-enono-1,5-lactone (9). The mechanism of this novel reaction is discussed, and certain differences in reactivity in the gluco and galacto series are pointed out. Base-catalyzed additions of methyl alcohol, ethyl alcohol, and piperidine to 8 afford methyl 4,6-O-benzylidene-3-deoxy-2-O-methyl-3-nitro-β-D-galactopyranoside (10), its 2-O-ethyl analogue (11), and methyl 4,6-O-benzylidene-2,3-dideoxy-3-nitro-2-piperidino-β-D-galacto-pyranoside (12), respectively.

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