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Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds

The present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide or amine moiety and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In additional embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between a nitrogen atom of an acyl hydrazine and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In other embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of a nitrogen-containing heteroaromatic, e.g., indole, pyrazole, and indazole, and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-oxygen bond between the oxygen atom of an alcohol and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. The present invention also relates to copper-catalyzed methods of forming a carbon-carbon bond between a reactant comprising a nucleophilic carbon atom, e.g., an enolate or malonate anion, and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. Importantly, all the methods of the present invention are relatively inexpensive to practice due to the low cost of the copper comprised by the catalysts.
Owner:MASSACHUSETTS INST OF TECH

Smps circuit with multiple ac/dc inputs and application of such circuit to computer power supplies or laptop adapters

The invention relates to a switch mode power supply (SMPS—Switching Mode Power Supply) which provides the output voltages generated in the AC-network-input switch mode power supply (SMPS—Switching Mode Power Supply) circuits also with battery and similar supply inputs when necessary by using a shared power transformer (T3) having separate power input windings (7, 6) appropriate for the particular input voltage for each input supply and the power switching transistors (Q1, Q2, Q5, Q6) connected to this windings in accordance with the topology used and, which other remaining control, feedback, output rectifying and filtering circuits and other windings of the transformer are single and shared without using a second independent power supply or regulator circuit in addition to the network-input power supply. By the addition of a small dry battery, this concept is applied to the computer power supplies in order to develop an economical Uninterruptible Computer Power Supply (UCPS), which could be installed to the power supply housing in the computer case and which could power the monitor as well. It has also been applied to the laptop computer adaptors and a two-supply-input laptop computer adaptor, which works either from the automobile lighter outlet or from the network with a single adaptor, has been developed.
Owner:OZENC SERGIN

LED project lamp using lamp shell support as mounting interface support structure

The invention discloses an LED project lamp using a lamp shell support as a mounting interface support structure. The LED project lamp comprises the lamp shell support (101) and LED bulbs (102), the lamp shell support (101) is a rectangular box with an opening on one surface, the surface opposite to the opening of the lamp shell support (101) is provided with a hole for mounting an extruded double-sided radiator (103), vent holes are arranged on the other surfaces of the lamp shell support (101) except for the surface with the opening and the surface with the hole, the lamp shell support (101) is fixedly mounted by fixing components arranged on two sides of the lamp shell support, and mounting surfaces for mounting the LED bulbs (102) are arranged on the extruded double-sided radiator (103). The LED project lamp is simple in structure, low in manufacturing cost and convenient to mount, use and maintain. The bulbs of the LED project lamp, a lighting fixture and a lighting control product can be respectively independent in production and use, production links of LED lighting products are greatly decreased, batch production is improved, and standard large-scale production and industrialization of the energy-saving LED lighting products are facilitated.
Owner:GUIZHOU GUANGPUSEN PHOTOELECTRIC

Copper-catalyzed formation of carbon heteroatom and carbon-carbon bonds

The present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide or amine moiety and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In additional embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between a nitrogen atom of an acyl hydrazine and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In other embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of a nitrogen-containing heteroaromatic, e.g., indole, pyrazole, and indazole, and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-oxygen bond between the oxygen atom of an alcohol and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. The present invention also relates to copper-catalyzed methods of forming a carbon-carbon bond between a reactant comprising a nucleophilic carbon atom, e.g., an enolate or malonate anion, and the activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate. Importantly, all the methods of the present invention are relatively inexpensive to practice due to the low cost of the copper comprised by the catalysts.
Owner:MASSACHUSETTS INST OF TECH
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