摘要:
The present invention relates to a method for manufacturing a boronic acid ester compound, characterized by reacting an aryl halide compound and a diboron ester compound in the presence of a nitrogen-containing organic base, a nickel catalyst, a phosphine compound and a solvent. According to the manufacturing method of the present invention, even if a nickel catalyst is used as the catalyst, a desired boronic acid ester compound can be obtained in a sufficiently high yield. Furthermore, even if aryl chloride or aryl bromide having relatively low price and low reactivity, was used as the aryl halide compound, a desired boronic acid ester compound can be obtained in a sufficiently high yield.
摘要:
The present invention relates to a method for manufacturing a boronic acid ester compound, characterized by reacting an aryl halide compound and a diboron ester compound in the presence of a nitrogen-containing organic base, a nickel catalyst, a phosphine compound and a solvent. According to the manufacturing method of the present invention, even if a nickel catalyst is used as the catalyst, a desired boronic acid ester compound can be obtained in a sufficiently high yield. Furthermore, even if aryl chloride or aryl bromide having relatively low price and low reactivity, was used as the aryl halide compound, a desired boronic acid ester compound can be obtained in a sufficiently high yield.
摘要:
The objective of the invention is to enhance measurement accuracy in a device for measuring a biological sample. To attain this objective, the invention is provided with a main case (2) having a sensor insertion section (1), a measurement section (7) connected to the sensor insertion section (1), a controller (8) connected to the measurement section (7), and a display (3) connected to the controller (8). An acceleration sensor (5) is furnished for detecting a shock applied to the sensor insertion section (1).
摘要:
A compact NMR analyzer for clinical examinations which is suitable for use at medical facilities is provided. An NMR analyzer for clinical examinations 1 for analyzing a sample including a liquid component extracted from a human body, includes: a solution feeding pump 6 that feeds a sample; a solution feeding pipe 18 that receives the sample fed from the solution feeding pump 6; a superconducting magnet 7 that encloses the solution feeding pipe 18 around an axis thereof; a helium container 9 that houses the superconducting magnet 7 and liquid helium 8; a vacuum container 12 that has a vacuum chamber and that houses the helium container 9 inside the vacuum chamber; heat shields 10 and 11 that cover the helium container 9 in the vacuum container 12; and a recondensing unit 3 that recondenses helium vaporized inside the helium container 9 and that cools the heat shields 10 and 11.
摘要:
The present invention provides a cleaning blade for an electrophotographic device, which, even when spherical (perfectly spherical or irregularly shaped), polymerized toner with a small particle diameter is used, can achieve sufficient abrasion resistance and sufficient cleaning ability (particularly cleaning ability under low-temperature and low-humidity conditions). The cleaning blade for an electrophotographic device includes an elastic rubber member; and a supporting member. The elastic rubber member has a double layer structure including an edge layer and a base layer. The edge layer is made of a material with a JIS-A hardness of 65° to 72° at 23° C. and a rebound resilience of 10 to 35%. The base layer is made of a material with a JIS-A hardness of 70° to 80° at 23° C. and a rebound resilience of 40 to 70%, the JIS-A hardness value being larger than the value of hardness of the edge layer.
摘要:
A packaging container includes a first clamshell half, a second clamshell half, a connecting portion that connects an edge of the first clamshell with an edge of the second clamshell half, a sealed portion that fastens the first clamshell and the second clamshell to each other, the sealed portion being located at the edge of the packaging container on a side opposite to the connecting portion, and a severed portion that is provided in at least one of the first clamshell and the second clamshell between the sealed portion and a packaged object, which is accommodated in a room created between the first clamshell and the second clamshell when the clamshell halves are fitted to each other, and that is severed off for opening the packaging container.
摘要:
The present invention provides an asymmetric reduction catalyst effective in preparing optically-active alcohol compounds having various functional groups, and a process for preparing optically-active alcohol compounds using said asymmetric reduction catalyst.The organic metal compound of the present invention is represented by the following general formula (1): wherein R1 and R2 may be mutually identical or different, and are an alkyl group, a phenyl group, a naphthyl group, a cycloalkyl group, or an alicyclic ring formed by binding R1 and R2, which may have a substituent; R3 is a hydrogen atom or an alkyl group; Cp is a cyclopentadienyl group, which may have a substituent, bound to M1 via a π bond; X1 is a halogen atom or a hydrido group; M1 is rhodium or iridium; and * denotes asymmetric carbon.
摘要:
A semiconductor memory device includes plural memory cells MC arranged in a matrix, plural bit lines BL and plural plate line voltage supply lines SCP which are arranged in a row direction, plural sense amplifier circuits SA which are arranged in a column direction and are electrically connected to the respective bit lines, plural plate line voltage supply circuits CPD which are arranged in the column direction and drive the plate line voltage supply lines SCP, and means for electrically connecting the plate line voltage supply lines SCP with the plural plate lines CP, wherein the respective plate voltage supply lines SCP are electrically connected, at different positions on the same plate line CP, to the plate line CP.
摘要:
A cryogenic system includes a space formed between a cooling stage of a cryocooler unit and an element to be cooled, and a thermal joint placed in the space, wherein the thermal joint is composed of a substance that has a melting point higher than the cooling temperature of the element to be cooled and that is in a liquid or gaseous state at room temperature and atmospheric pressure. The cryogenic system can achieve reproducible and excellent thermal contact at a cooling stage without applying a large mechanical stress to a cryocooler unit structure.
摘要:
It is an object of the present invention to provide a conductive member for use in OA equipment which shows very stable conductivity in the volume resistivity range of 105 to 1012 Ω·cm, the conductivity of which is less dependent on the voltage applied and varies only slightly during continuous energization and upon changes in environmental factors such as temperature and humidity and which will not stain photoconductors due to bleeding or blooming.The present invention provides a conductive member for OA equipment, which is obtainable by molding a composition comprising a non-ether-based polyurethane and bis(trifluoromethanesulfonyl)imidolithium.