摘要:
Disclosed is a method for making high purity .alpha.-chloroxylenes. A composition is formed of about 15 to about 80 wt % of a xylene and about 20 to about 85 wt % of a solvent. The solvent can be toluene, ring halogenated toluene, benzotrichloride, ring halogenated benzotrichloride, benzotrifluoride, ring halogenated benzotrifluoride, .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexafluorometaxylene, .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexafluoroparaxylene, or a mixture thereof. The composition is heated to about 70 to about 160.degree. C. No base is present in the composition. Chlorine gas is sparged through the composition and chlorine free radicals are generated therein. The chlorine free radicals can be generated either with UV light or by means of a chlorine free radical initiator.
摘要:
Disclosed is a method of preparing an aromatic compound having the general formula ##STR1## where R is CF.sub.3, OCF.sub.3, OC.sub.2 F.sub.5, CN, NCO, or COCl, m is 0, 1, or 2, n is 0, 1, or 2, q is 1 or 2, and q+m+n is an integer from 1 to 5. A vapor is prepared of a substrate having the general formula ##STR2## and a chlorinating agent. The mixture is reacted at a temperature above the boiling point of the substrate but below its decomposition temperature. The amount of chlorinating agent is about 0.5 to about 2 times the amount stoichiometrically required to replace the nitro groups on the substrate with chlorine. Unreacted substrate and partially reacted substrate are condensed from the product mixture and are recycled. The substrate is preferably in contact with the chlorinating agent before it is vaporized.
摘要翻译:公开了一种制备具有以下通式的芳族化合物的方法:其中R为CF 3,OCF 3,OC 2 F 5,CN,NCO或COCl,m为0,1或2,n为0,1或2,q为1 或2,q + m + n是1至5的整数。制备具有通式的基底和氯化剂的蒸气。 混合物在高于基体沸点但低于其分解温度的温度下反应。 氯化剂的量为用氯替代底物上的硝基所需的化学计量量的约0.5至约2倍。 未反应的底物和部分反应的底物从产物混合物中冷凝并再循环。 基材在蒸发之前优选与氯化剂接触。
摘要:
The invention is a method of administering therapeutic iodine for treating a disorder in a mammal. The invention comprises a step of feeding said mammal an effective amount of an oxidant for an iodine species and an iodine reductant which will cause oxidation-reduction reactions upon contact with the gastric juices present in the stomach of the mammal. This is done such that molecular iodine is generated in vivo at a ratio of molecular iodine to total iodine of above at least about 0.65. The invention also discloses a non-aqueous pharmaceutically acceptable carrier with said oxidant and reductant having the ability to cause oxidation-reduction reactions upon contact with the gastric juices present in the stomach of said mammal and in an amount sufficient to generate molecular iodine, in vivo, at a ratio of molecular iodine to total iodine of above at least about 0.65.
摘要:
Among other things, one or more rotating members of a radiation imaging modality, such as a CT system, are described herein. The rotating member may be configured to support at least one of a radiation source or a detector array and comprises at least one element configured to facilitate the transfer of power to the rotating member and at least one element configured to facilitate the transfer of information between the rotating member and a stator. The rotating member may also comprise one or more positioning elements that are formed within the rotating member and are configured to facilitate determining a rotation angle of the rotating member. The rotating member may further comprise, among other things, a bearing structure, antenna assembly for transferring image data, and/or a drive mechanism for facilitating rotation of the rotating member, for example.
摘要:
In a virtualized desktop system an interfacing module is coupled to peripheral ports of a target device. The interfacing module is connected to a network. A digital user station is connected to the network. The digital user station is configured to be coupled to peripherals. The interfacing module and digital user station use respective hardware engines to communicate via said network.
摘要:
A server computer that is connected over a network to one or more remote client computers includes specialized hardware for handling computationally-intensive signal processing operations involving video, audio, and/or other signals. As a result, users of the client computers experience little or no delay when accessing over the network applications that are hosted on the server.
摘要:
Among other things, one or more rotating members of a radiation imaging modality, such as a CT system, are described herein. The rotating member may be configured to support at least one of a radiation source or a detector array and comprises at least one element configured to facilitate the transfer of power to the rotating member and at least one element configured to facilitate the transfer of information between the rotating member and a stator. The rotating member may also comprise one or more positioning elements that are formed within the rotating member and are configured to facilitate determining a rotation angle of the rotating member. The rotating member may further comprise, among other things, a bearing structure, antenna assembly for transferring image data, and/or a drive mechanism for facilitating rotation of the rotating member, for example.
摘要:
A server computer that is connected over a network to one or more remote client computers includes specialized hardware for handling computationally-intensive signal processing operations involving video, audio, and/or other signals. As a result, users of the client computers experience little or no delay when accessing over the network applications that are hosted on the server.
摘要:
An interfacing module connected to a network. A target network device connected to the network. An interfacing module is associated with a target network device. An interfacing module is coupled to a peripheral port of a target network device. Interfacing module identification data is stored in a memory portion of the target network device. The network address of the target network device is determined. The network address of the interfacing module is determined. At a remote location the network address of the target network device is used to read the interfacing module identification data from the memory portion of the target device via the network.