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Class Information
Number: 552/308
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Cyclohexadiene having atoms double bonded directly at the 1- and 4- positions (e.g., paraquinones, etc.) > Halogen bonded directly at the 2-, 3-, 5-, or 6- position
Description: Compounds wherein halogen is bonded directly to any of the remaining positions of the cyclohexadiene ring (i.e., 2-, 3-, 5-, or 6- position).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6828450 |
Triptycene analogs |
Dec. 7, 2004 |
| 5847171 |
Molecular organic compound with ferromagnetic properties and a method of producing it |
Dec. 8, 1998 |
| 5714622 |
Molecular organic compound with ferromagnetic properties and a method of producing it |
Feb. 3, 1998 |
| 5559257 |
Process for the preparation of tetrachloro-1,4-benzoquinone |
Sep. 24, 1996 |
| 5525744 |
Process for the preparation of tetrachloro-1,4-benzoquinone |
Jun. 11, 1996 |
| 5334735 |
Process for preparing chloranil |
Aug. 2, 1994 |
| 5329027 |
Oxidative dehalogenation process for the production of perchlorinated quinones |
Jul. 12, 1994 |
| 5318993 |
Antihyperlipidemic benzoquinones |
Jun. 7, 1994 |
| 5180842 |
Purification of quinones |
Jan. 19, 1993 |
| 5175318 |
Process for the preparation of quinones |
Dec. 29, 1992 |
| 5151532 |
Process for the production of high-purity tetrachloro-1,4-benzoquinone |
Sep. 29, 1992 |
| 5149850 |
Process for the production of high-purity tetrachloro-1,4-benzoquinone |
Sep. 22, 1992 |
| 5149849 |
Process for the preparation of quinhydrones |
Sep. 22, 1992 |
| 5107003 |
Preparation of quinones by the ceric-catalyzed oxidation of aromatic diols |
Apr. 21, 1992 |
| 5075463 |
Preparation of quinones |
Dec. 24, 1991 |
| 5075462 |
Process for the preparation of quinones |
Dec. 24, 1991 |
| 4999441 |
Tetrakis(dialkylamino)aromatics and their charge transfer complexes |
Mar. 12, 1991 |
| 4683087 |
Anti-cancer agents and processes for their preparation |
Jul. 28, 1987 |
| 4522757 |
Process for oxidizing a phenol to a p-benzoquinone |
Jun. 11, 1985 |
| 4519948 |
Process for oxidizing a phenol to a p-benzoquinone |
May. 28, 1985 |
| 4433159 |
Synthesis of optically active d-alpha tocopherol |
Feb. 21, 1984 |
| 4379939 |
Preparation of nitrogen fertilizers from oxalate esters prepared by the oxidative carbonylation of alcohols over noble metal catalysts utilizing regenerable 2,5-cyclohexadiene-1,4-dione oxidan |
Apr. 12, 1983 |
| 4368140 |
Halogenation process in the presence of cyanoquinone catalyst |
Jan. 11, 1983 |
| 4360469 |
Preparation of quinones by salcomine-catalyzed oxidation of phenols |
Nov. 23, 1982 |
| 4288147 |
Electro-optical composition of the guest-host type |
Sep. 8, 1981 |
| 4202788 |
Stabilization of aqueous p-benzoquinones |
May. 13, 1980 |
| 3953874 |
Organic electronic rectifying devices |
Apr. 27, 1976 |
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