Results 261 to 270 of about 25,600 (309)
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The Journal of Chemical Thermodynamics, 1990
Abstract The standard ( p ⊖ = 0.1 MPa ) molar enthalpy of formation of ammonium azide at 298.15 K has been derived from measurements of the energy of combustion in oxygen as Δ f H m ⊖ (cr) = (114.14±0.94) kJ·mol −1 . From measurements of the molar enthalpy of solution of NH 4 N 3 (cr) in water, the value
Peter J. Gardner +3 more
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Abstract The standard ( p ⊖ = 0.1 MPa ) molar enthalpy of formation of ammonium azide at 298.15 K has been derived from measurements of the energy of combustion in oxygen as Δ f H m ⊖ (cr) = (114.14±0.94) kJ·mol −1 . From measurements of the molar enthalpy of solution of NH 4 N 3 (cr) in water, the value
Peter J. Gardner +3 more
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Pyrolysis of aryl azides. II. Naphthyl azides
Australian Journal of Chemistry, 1972Kinetic studies of the pyrolyses of 1- and 2-naphthyl azides reveal neighbouring group participation by nitro and phenylazo substituents. The acceleration observed in 1-nitro-2-naphthyl azide, 1-phenylazo-2-naphthyl azide, and 2-nitro-1-naphthyl azide is 1730-, 211-, and 23.6-fold, respectively, in nitrobenzene solution at 120 .
P. R. Sadler, L. K. Dyall, G. Boshev
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Nature, 1931 WE have just seen Dr. Sutton's communication on the “Structure of the Azides, from their Electric Dipole Moments”.1 We also have measured the dipole moments of phenylazide, p-chlorphenylazide, and p-bromphenylazide and found the values 1.55, 0.47, and 0.64 × 10â18 e.s.u., respectively, in good agreement with Dr. Sutton's data.
Willibald Schütz, Ernst D. Bergmann
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Azide Phosphoramidite in Direct Synthesis of Azide-Modified Oligonucleotides
Organic Letters, 2014Azide and phosphoramidite functions were found to be compatible within one molecule and stable for months in solution kept frozen at -20 °C. An azide-carrying phosphoramidite was used for direct introduction of multiple azide modifications into synthetic oligonucleotides.
Maksim Navakouski +6 more
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Solubility of Sodium Azide and Alpha-Lead Azide.
Journal of Chemical & Engineering Data, 1966The solubility of sodium azide was determined in water and in 40, 60, 80, and 95.5% ethanol-water mixtures, respectively. The solubilities were first determined by a synthetic method (9) which involved the preparation of a solution of known composition, the saturation point of which was determined by varying the temperature.
Eugene Lieber +3 more
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Inorganic Chemistry, 2008
Ionic liquid azides from azidoethyl, alkyl, and alkenyl substituted derivatives of 1,2,4- and 1,2,3-amino-triazoles were prepared and examined for the first time to investigate their structural and physical properties. All reported salts possess melting points below 100 degrees C.
Leslie Hudgens +7 more
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Ionic liquid azides from azidoethyl, alkyl, and alkenyl substituted derivatives of 1,2,4- and 1,2,3-amino-triazoles were prepared and examined for the first time to investigate their structural and physical properties. All reported salts possess melting points below 100 degrees C.
Leslie Hudgens +7 more
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Angewandte Chemie, 2023
AbstractAzide compounds are widely used and especially, polymers bearing pendant azide groups are highly desired in numerous fields. However, harsh reaction conditions are always mandatory to achieve full azidation, causing severe side reactions and degradation of the polymers.
Chi Zhang +8 more
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AbstractAzide compounds are widely used and especially, polymers bearing pendant azide groups are highly desired in numerous fields. However, harsh reaction conditions are always mandatory to achieve full azidation, causing severe side reactions and degradation of the polymers.
Chi Zhang +8 more
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Taming Azide Radicals for Catalytic C–H Azidation [PDF]
ACS Catalysis, 2015 AbstractReview: 110 refs.
John T. Groves, Xiongyi Huang
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1994
Hydrazine hydrate (1.67 ml = 1.72 g, 34 mmol) is added to a solution of N-benzyloxycarbonyl-S-benzyl-l-cysteinyl-l-seryl-l-histidine methyl ester [1, 2] (5.84 g, 10 mmol) in methanol [3] (50 ml) and the reaction mixture is kept at room temperature for 3 days [4].
Miklos Bodanszky, Agnes Bodanszky
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Hydrazine hydrate (1.67 ml = 1.72 g, 34 mmol) is added to a solution of N-benzyloxycarbonyl-S-benzyl-l-cysteinyl-l-seryl-l-histidine methyl ester [1, 2] (5.84 g, 10 mmol) in methanol [3] (50 ml) and the reaction mixture is kept at room temperature for 3 days [4].
Miklos Bodanszky, Agnes Bodanszky
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Carbohydrate Polymers, 2006
Starch is an inexpensive commodity that has been used for non-food purposes for many years. Some of these uses include cross-linked starches that are synthesized with a variety of multifunctional reagents. One unexplored possibility is the use of azides for cross-linking.
Gregory M. Glenn +7 more
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Starch is an inexpensive commodity that has been used for non-food purposes for many years. Some of these uses include cross-linked starches that are synthesized with a variety of multifunctional reagents. One unexplored possibility is the use of azides for cross-linking.
Gregory M. Glenn +7 more
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