摘要:
5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylic acid of formula (5) or a salt thereof, is prepared by reacting reacting 2-bromo-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine of formula (3) or a salt thereof, with a metal cyanide, to obtain 2-cyano-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine of formula (4) or a salt thereof, and hydrolyzing the 2-cyano-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine of formula (4) or a salt thereof.
摘要:
A radial anisotropic sintered magnet formed into a cylindrical shape includes a portion oriented in directions tilted at an angle of 30° or more from radial directions, the portion being contained in the magnet at a volume ratio in a range of 2% or more and 50% or less, and a portion oriented in radial directions or in directions tilted at an angle less than 30° from radial directions, the portion being the rest of the total volume of the magnet. The radial anisotropic sintered magnet has excellent magnet characteristics without occurrence of cracks in the steps of sintering and cooling for aging, even if the magnet has a shape of a small ratio between an inner diameter and an outer diameter.
摘要:
5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine of formula (6) or a salt thereof, is prepared by reacting 2-amino-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine of formula (2) or a salt thereof, with an alkali metal nitrite in the presence of a reducing agent in an aqueous solution of an acidic compound.
摘要:
A copper alloy material for an electrical/electronic equipment, containing Ni not less than 2.0 mass % and less than 3.3 mass %, having a content of Si within the range of 2.8 to 3.8 in terms of a mass ratio of Ni and Si (Ni/Si), and containing Mg 0.01 to 0.2 mass %, Sn 0.05 to 1.5 mass %, and Zn 0.2 to 1.5 mass %, with the balance of Cu and inevitable impurities, wherein when a test piece with thickness t of 0.20 mm and width w of 2.0 mm is subjected to 180°-bending with bending radius R (mm), a value of the minimum bending radius R causing no cracks is 0 mm to 0.1 mm; and, an electrical/electronic part obtained by working the same.
摘要:
This invention provides a touch panel having excellent durability in a high-temperature high-moisture environment and a production method thereof. In a touch panel 1 including a pair of transparent glass substrates 1a and 2a each having a transparent electrode 1b, 2b and so arranged as to oppose each other through a seal portion 3, a thickness of the seal portion 3 is set to be not greater than 8 μm (exclusive of 0). In this way, moisture permeating through the seal portion 3 and entering a gap between the pair of transparent glass substrates 1a and 2a can be reduced.
摘要:
The present invention relates to a hydrodehalogenation method in which a halogen atom on a carbon atom of an organic compound is removed by substituting the halogen atom with a hydrogen atom, and to a method for producing a dehalogenated compound. The hydrodehalogenation method is characterized by including treating an organic compound having a halogen atom on a carbon atom thereof in a solvent with a compound represented by formula (2-1): M2BHpR1q (2-1) or formula (2-2): M3(BHpR1q)2 (2-2) (wherein M2 represents an alkali metal atom; M3 represents an alkaline earth metal atom or a zinc atom; R1 represents a hydrogen atom, a cyano group, a C2-C13 acyloxy group, or a C1-C6 alkoxy group; p is an integer of 1 to 4; q is an integer of 0 to 3; and the sum of p and q is 4) in the presence of a Group VIII metal complex represented by formula (1): M1XmLn (1) (wherein M1 represents a Group VIII metal; X represents a halogen atom; L represents a neutral ligand; m is an integer of 1 or 2; n is an integer of 2 or 3; and the sum of m and n is 4).
摘要:
In a method for multiple cutoff machining a rare earth magnet block, a cutting fluid feed nozzle having a plurality of slits is combined with a plurality of cutoff abrasive blades coaxially mounted on a rotating shaft, each said blade comprising a base disk and a peripheral cutting part. The slits in the feed nozzle into which the outer peripheral portions of cutoff abrasive blades are inserted serve to restrict any axial run-out of the cutoff abrasive blades during rotation. Cutting fluid is fed from the feed nozzle through slits to the rotating cutoff abrasive blades and eventually to points of cutoff machining on the magnet block.
摘要:
A rotation transmission device includes inner and outer rings and a two-way clutch therebetween. An electromagnetic clutch is provided to selectively engage and disengage the two-way clutch, and includes an electromagnet having a core to which a flange is secured. The flange is received in a recess formed in a stationary member. A snap ring is engaged in a groove formed in the recess to prevent the flange from coming out of the recess. An elastic member is disposed between the flange and the end wall of the recess. The elastic member presses the flange against the snap ring, thereby axially positioning the electromagnet. The elastic member is free of load resulting from magnetic attraction of the electromagnet when energized. This makes it possible to reduce the spring force of the elastic member and thus its diameter and cost.
摘要:
A compound having an action of suppressing platelet aggregation is provided. This compound also exhibits excellent physical properties and oral absorbability. This compound is represented by formula (Ib): Its production method is also provided.
摘要:
The invention is directed to a process for producing intermediates of a compound which exhibits an activated blood coagulation factor Xa inhibitory action and which is a useful preventive and a therapeutic agent for thrombotic diseases. The intermediate production process is represented by the following reaction scheme.