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Class Information
Number: 568/931
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Nitro containing (including aci forms) > Benzene ring containing > Plural rings containing > Polynitro
Description: Compounds which contain at least two -NO2










Patents under this class:
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Patent Number Title Of Patent Date Issued
7709684 Process for preparing substituted biphenyls May. 4, 2010
6992230 Process for the production of 1,5-dinitronaphthalene Jan. 31, 2006
6906231 Aromatic nitration reactions Jun. 14, 2005
6844473 Continuous aspiration process for manufacture of ultra-fine particle HNS Jan. 18, 2005
6737554 Process for the production of a dinitronaphthalene isomer mixture with a high proportion of 1,5-dinitronaphthalene May. 18, 2004
6586617 Sulfonamide derivatives Jul. 1, 2003
6476280 Method for making nonanitroterphenyl Nov. 5, 2002
6420616 Process for preparing a dinitronaphthalene isomer mixture having an increased proportion of 1,5- dinitronaphthalene Jul. 16, 2002
6362380 Preparation of nitrobiphenyls Mar. 26, 2002
6333439 Bisazo compound and electrophotographic photoconductor using the same Dec. 25, 2001
6087542 Process for preparing nitrobiphenylene Jul. 11, 2000
H1675 Hybrid capsule charge Sep. 2, 1997
5567846 Fluorinated aromatic dinitro compounds and diamines Oct. 22, 1996
5475149 Method for ether formation Dec. 12, 1995
5312952 Polymerization inhibitor for vinyl aromatics May. 17, 1994
5237077 Non-pollutional process for producing aromatic nitro compounds without using a mineral acid Aug. 17, 1993
5177258 Method of production of biaryl derivatives Jan. 5, 1993
5081233 Bisazo compounds and electrophotographic photoconductors comprising the bisazo compounds Jan. 14, 1992
5072061 1,14-bis(4-nitrophenyl)-1,3,5,7,9,11,13-tetradecaheptaene and preparation method thereof Dec. 10, 1991
5053544 Diamino compound and its intermediates Oct. 1, 1991
5037994 Regioselective nitration of diphenyl compounds Aug. 6, 1991
5023386 Production of hexanitrostilbene (HNS) Jun. 11, 1991
5008456 Diamino compounds, dinitro compounds, diol compounds and a process for preparing the diamino compounds Apr. 16, 1991
4952708 Method for preparing biaryl compounds Aug. 28, 1990
4935544 Polynitrobiphenyl derivative Jun. 19, 1990
4861924 1,3,5-trinitro-2,4,6-tripicrylbenzene Aug. 29, 1989
4853151 Dispirotetradecanes Aug. 1, 1989
4734532 Process for the preparation of 4,4'-dinitrodibenzyls Mar. 29, 1988
4721821 Method for preparing nitrobibenzyl systems Jan. 26, 1988
4695405 Process for quenching fluorescence, and new cationic or amphoteric aromatic nitro compounds Sep. 22, 1987
4626606 Production of hexanitrostilbene (HNS) Dec. 2, 1986
4604489 Recrystallization of hexanitrostilbene from dimethylsulfoxide and methanol Aug. 5, 1986
4558166 Process for the preparation of benzal chlorides Dec. 10, 1985
4551264 Polyhalogenoaromatic compounds for liquid crystal compositions Nov. 5, 1985
4503248 Substituted-quaterphenylene monomers for the production of polyamides therefrom Mar. 5, 1985
4447650 Methylene coupling of aromatics May. 8, 1984
4397677 Dioxolane substituted 2,6-dinitroanilines Aug. 9, 1983
4335055 Process for the preparation of alkenylbenzene derivatives or alkenylnaphthalene derivatives Jun. 15, 1982
4307024 1,1,1-Triaryl-2,2,2-trifluoroethanes and process for their synthesis Dec. 22, 1981
4307258 HNS From 2,4,6-trinitrobenzyl chloride and nitrogenous bases Dec. 22, 1981
4294976 Process for producing biphenyl compounds Oct. 13, 1981
4270012 Preparation of HNS from HNBB using oxygen May. 26, 1981
4268696 Method for preparing hexanitrostilbene May. 19, 1981
4261908 Process for isolating aromatic dinitro compounds Apr. 14, 1981
4260837 Recrystallization of hexsanitrostilbene from nitric acid and water Apr. 7, 1981
4255358 Process for the production of hexanitrostilbene Mar. 10, 1981
4250294 Polymers obtained from polynitroaromatic compounds Feb. 10, 1981
4247724 Process for preparing hexanitrobibenzyl Jan. 27, 1981
4245129 Process for preparing hexanitrobibenzyl Jan. 13, 1981
4243614 Process for producing hexanitrostilbene Jan. 6, 1981

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