scholarly journals Structural Confirmation of the Nitration Product of the 1(2H)-Phthalazinone as the 2-Nitro-1(2H)-phthalazinone.

1992 ◽  
Vol 40 (12) ◽  
pp. 3327-3329 ◽  
Author(s):  
Shigeru ITO ◽  
Kentaro YAMAGUCHI ◽  
Yasuo KOMODA
Keyword(s):  
Nitration Product

Formation and Structure of a Novel Nitration Product of δ -Tocopherol

2013 ◽  
Vol 10 (1) ◽  
pp. 165-168 ◽  
Author(s):  
Stefan Bohmdorfer ◽  
Anjan Patel ◽  
Lars Gille ◽  
Thomas Netscher ◽  
Kurt Mereiter ◽  
...  
Keyword(s):  
Nitration Product

Medium-sized cyclophanes, part 59:1 Nitration of [3.3]- and [3.3.3]metacyclophanes — Through-space electronic interactions between two or three benzene rings

2002 ◽  
Vol 80 (2) ◽  
pp. 207-215 ◽  
Author(s):  
Takehiko Yamato ◽  
Koji Tsuchihashi ◽  
Noriko Nakamura ◽  
Mai Hirahara ◽  
Hirohisa Tsuzuki
Keyword(s):  
Acetic Anhydride ◽  
Electronic Interaction ◽  
Reaction Conditions ◽  
Tert Butyl ◽  
Mixed Acid ◽  
Butyl Group ◽  
Tert Butyl Group ◽  
Starting Compound ◽  
Nitration Product ◽  
Fuming Nitric Acid

The two tert-butyl groups of anti-6,15-di-tert-butyl-9,18-dimethoxy[3.3]metacyclophane (anti-4) are both ipso-nitrated even under mild reaction conditions such as copper(II) nitrate in an acetic anhydride solution because of the decreased deactivation of the second aromatic ring by the introduced nitro group. On the other hand, anti-5,13-di-tert-butyl-8,16-dimethoxy[2.2]metacyclophane (anti-1) undergoes replacement of only one tert-butyl group under the same reaction conditions. The higher yields of the twofold ipso-nitration product anti-7 were obtained in nitration of anti-4 with fuming nitric acid or mixed acid (HNO3–H2SO4). Thus, the number of ipso-nitrations at the tert-butyl groups of anti-4 was strongly affected by the reactivity of the nitration reagent. Nitration of the corresponding syn-conformer syn-4 with copper(II) nitrate in an acetic anhydride solution, however, led only to the recovery of the starting compound. The presently developed procedure was further applied to the direct removal of the tert-butyl group by electrophilic substitution of the larger-sized ring macrocyclic metacyclophanes, cone- and partial-cone-tri-tert-butyl[3.3.3]metacyclophanes 11.Key words: [3n]metacyclophanes, conformation, ipso-nitration, through-space electronic interaction, crystal structure.

The Nitration Product 5-Nitro-γ-tocopherol Is Increased in the Alzheimer Brain

Nitric Oxide ◽  
2002 ◽  
Vol 6 (2) ◽  
pp. 221-227 ◽  
Author(s):  
Kelly S. Williamson ◽  
S. Prasad Gabbita ◽  
Shenyun Mou ◽  
Melinda West ◽  
Quentin N. Pye ◽  
...  
Keyword(s):  
Alzheimer Brain ◽  
Nitration Product

Vapor-phase butane nitration product analysis by on-line multiple column gas chromatography

1968 ◽  
Vol 35 ◽  
pp. 10-16
Author(s):  
R.W. Handinson ◽  
D.H. Johnnie ◽  
B.F. Fives ◽  
George Burnet
Keyword(s):  
Gas Chromatography ◽  
Vapor Phase ◽  
Product Analysis ◽  
Nitration Product ◽  
On Line

ChemInform Abstract: A New Nitration Product, 3-Nitro-4-acetamidophenol, Obtained from Acetaminophen with Nitrous Acid.

ChemInform ◽  
1990 ◽  
Vol 21 (1) ◽  
Author(s):  
T. MATSUNO ◽  
T. MATSUKAWA ◽  
Y. SAKUMA ◽  
T. KUNIEDA
Keyword(s):  
Nitrous Acid ◽  
Nitration Product

scholarly journals A new nitration product, 3-nitro-4-acetamidophenol, obtained from acetaminophen with nitrous acid.

1989 ◽  
Vol 37 (5) ◽  
pp. 1422-1423 ◽  
Author(s):  
Takanobu MATSUNO ◽  
Tomoko MATSUKAWA ◽  
Yoshiharu SAKUMA ◽  
Takehisa KUNIEDA
Keyword(s):  
Nitrous Acid ◽  
Nitration Product

scholarly journals Highly soluble cellulose nitrates from unconventional feedstocks

2018 ◽  
Vol 243 ◽  
pp. 00005
Author(s):  
Yulia Gismatulina ◽  
Anna Korchagina ◽  
Vera Budaeva ◽  
Gennady Sakovich
Keyword(s):  
Chemical Shifts ◽  
Temperature Treatment ◽  
Exothermic Peak ◽  
High Temperature Treatment ◽  
Absorption Bands ◽  
Oat Hulls ◽  
Mixed Acid ◽  
Nitration Product ◽  
Cellulose Nitrates ◽  
C Nmr

Celluloses isolated by the nitric-acid process from domestic unconventional feedstocks such as Miscanthus, oat hulls, and intermediate flax straw were used herein to produce cellulose nitrates (CNs) with a high solubility. For the synthesis of CNs, a commercial technique was employed that involves nitration of cellulose with mixed acid containing 14 wt.% water followed by high-temperature treatment of the nitration product in acidic, alkaline, and neutral environments. The obtained CNs are similar in physicochemical attributes: 12.04–12.26% mass fraction of nitrogen, 10–14 mPa·s viscosity, and 98% solubility in alcohol– ester mixture. FTIR spectra of CNs had absorption bands (2559–2557, 1646–1631, 1277–1271, 825–812, 747–744, 683–680 cm-1) typical of nitro group vibrations. 13C NMR spectra showed chemical shifts representative of 6-mononitrocellulose, 2,6-dinitrocellulose, 3,6-dinitrocellulose, and 2,3,6-trinitrocellulose. DSC revealed that the resultant CNs were highly chemically pure with an exothermic peak at 209–212°С. The CNs obtained from the said unconventional feedstocks were compared with a commercial, highviscosity, lacquer-grade Colloxylin derived from cotton cellulose, as well as with other commercial Colloxylins, to show that the experimental CNs meet the requirements for comercial grades. Thus, the CNs obtained from the unconventional feedstocks are promising candidates as the component of composite explosives.

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