摘要:
A system includes a plurality of remote servers deployed in a remote network, a central information management server, and a connector for routing transmissions between the plurality of remote servers and the central information management server.
摘要:
A system includes a plurality of remote servers deployed in a remote network, a central information management server, and a connector for routing transmissions between the plurality of remote servers and the central information management server.
摘要:
A process is described for synthesizing aminoarylboronic esters of the general formula wherein R, R2, and R3 are each an alkyl, aryl, vinyl, alkoxy, carboxylic esters, amides, or halogen; Ar is any variety of phenyl, naphthyl, anthracyl, heteroaryl; and R1 is alkyl, hydrogen, or aryl. The aminoarylboronic esters are produced via the metal-catalyzed coupling of arylboronic esters of the general formula wherein R and R1 are any non-interfering group and X is chloro, bromo, iodo, triflates, or nonaflates to amines (primary and secondary). In particular, a process is described for the synthesis of the aminoarylboronic esters via a step-wise or tandem process in which one catalytic event is a metal-catalyzed borylation and the other catalytic event is a metal-catalyzed amination.
摘要:
A process to synthesize substituted phenols such as those of the general formula RR′R″Ar(OH) wherein R, R′, and R″ are each independently hydrogen or any group which does not interfere in the process for synthesizing the substituted phenol including, but not limited to, halo, alkyl, alkoxy, carboxylic ester, amine, amide; and Ar is any variety of aryl or hetroaryl by means of oxidation of substituted arylboronic esters is described. In particular, a metal-catalyzed C—H activation/borylation reaction is described, which when followed by direct oxidation in a single or separate reaction vessel affords phenols without the need for any intermediate manipulations. More particularly, a process wherein Ir-catalyzed borylation of arenes using pinacolborane (HBPin) followed by oxidation of the intermediate arylboronic ester by OXONE is described.
摘要:
Systems and methods for centralizing database manipulation for a plurality of heterogeneous databases are disclosed. A single or limited number of central servers can be used to manage a plurality of hosted client systems. With such a technique, database consistent backups can be performed without requiring altering of the central server, even when different database engines are used across the hosted client systems.
摘要:
A device for storing and converting chemical energy into controlled mechanical motion requires that chemical energy is released through ignition and stored in an accumulator. When a release valve is activated the stored energy is used to move a piston and push-rod arrangement, which can be used to actuate certain power tools.
摘要:
A path disruption alert vehicle system that positions an alert vehicle forward of an ensuing vehicle, alerts the ensuing vehicle of sensed path disruption events, and alerts individuals that are in the path of the oncoming ensuing vehicle.
摘要:
The present invention provides a device which will provide a remotely activated forcible entry device. The device has retractable parts to reduce bulk of the device when in transit. The Device is lighter than traditional battering rams and is used to breach a conventional door without putting emergency personnel in the line of fire. The device uses traditional cartridges to apply force to the doorway without any specialist training.