Abstract: A method for converting an N,N-dialkylamide compound into an ester compound includes using a fourth period transition metal complex as a catalyst. The fourth period transition metal complex is obtained by a reaction of a precursor having a fourth period transition metal with a nitrogen-containing compound or a phosphorus-containing compound.

Abstract: A method for converting an N,N-dialkylamide compound into an ester compound includes using a fourth period transition metal complex as a catalyst. The fourth period transition metal complex is obtained by a reaction of a precursor having a fourth period transition metal with a nitrogen-containing compound or a phosphorus-containing compound.

Abstract: A method for producing, in a few simple steps, a specific optically active aldehyde represented by the general formula (1), in which * is an asymmetric carbon atom, includes asymmetrically isomerizing a specific allyl alcohol represented by the general formula (2) in the presence of a ruthenium complex and a base.

Abstract: A process for producing an optically active amine compound, characterized by asymmetrically hydrogenating a prochiral carbon-nitrogen double bond in the presence of a ruthenium complex represented by general formula (1) or (2) (wherein P represents an optically active diphosphine, X represents an anionic group, and Ar represents an optionally substituted arylene group).

Abstract: The present invention provides a novel ruthenium complex which has an excellent catalytic activity in terms of reactivity for an asymmetric reduction of a carbonyl compound and enantioselectivity, a catalyst using the ruthenium complex, and a method for preparing optically active alcohol compounds using the ruthenium complex. The present invention relates to a ruthenium complex having a ruthenacycle structure, a catalyst for an asymmetric reduction consisting of the ruthenium complex, and a method for preparing optically active alcohol compounds using the ruthenium complex.

Abstract: A method for producing, in a few simple steps, a specific optically active aldehyde represented by the general formula (1), in which * is an asymmetric carbon atom, includes asymmetrically isomerizing a specific allyl alcohol represented by the general formula (2) in the presence of a ruthenium complex and a base.

Abstract: A method for producing an optically active isopulegol includes asymmetrically isomerizing a specific compound in the presence of a ruthenium catalyst and a base, thereby giving an optically active citronellal, and selectively cyclizing the optically active citronellal in the presence of an aluminum catalyst. The aluminum catalyst is obtained by reacting a specific hydroxy compound and at least one aluminum compound selected from a specific alkylaluminum compound, a specific hydride aluminum compound, a specific linear aluminoxane and a specific cyclic aluminoxane.

Abstract: A process for producing an optically active amine compound, characterized by asymmetrically hydrogenating a prochiral carbon-nitrogen double bond in the presence of a ruthenium complex represented by general formula (1) or (2) (wherein P represents an optically active diphosphine, X represents an anionic group, and Ar represents an optionally substituted arylene group).

Abstract: The present invention provides a novel ruthenium complex which has an excellent catalytic activity in terms of reactivity for an asymmetric reduction of a carbonyl compound and enantioselectivity, a catalyst using the ruthenium complex, and a method for preparing optically active alcohol compounds using the ruthenium complex. The present invention relates to a ruthenium complex having a ruthenacycle structure, a catalyst for an asymmetric reduction consisting of the ruthenium complex, and a method for preparing optically active alcohol compounds using the ruthenium complex.

Abstract: Disclosed is an industrially advantageous production method of optically active ?-amino acid of formula (5a), which includes subjecting an enaminoester of formula (4a) to an asymmetric hydrogenation: wherein * shows an asymmetric carbon atom.

Abstract: A semiconductor device includes a first die pad, a first semiconductor chip provided on the first die pad, a second die pad, a second semiconductor chip provided on the second die pad, and a sealing resin made of a first resin material, sealing the first die pad, the first semiconductor chip, the second die pad and the second semiconductor chip. A lower surface of the first semiconductor chip is connected to the first die pad. A first portion of a lower surface of the second semiconductor chip is connected to the second die pad, and a second portion not connected to the second die pad of the lower surface of the second semiconductor chip is connected to an upper surface of the first semiconductor chip via a second resin material different from the first resin material.

Abstract: Disclosed is a producing method of an optically active ?-amino acid useful as intermediate for the production of medicines, agricultural. chemicals and physiologically active substances, by means of a catalytic and asymmetric synthesis method of high performance and a high enantiomeric excess, without requiring additional procedures such as introduction and removal of protecting group and so on. The method includes subjecting an enamine to an asymmetric hydrogenation.

Abstract: A semiconductor device includes a first die pad, a first semiconductor chip provided on the first die pad, a second die pad, a second semiconductor chip provided on the second die pad, and a sealing resin made of a first resin material, sealing the first die pad, the first semiconductor chip, the second die pad and the second semiconductor chip. A lower surface of the first semiconductor chip is connected to the first die pad. A first portion of a lower surface of the second semiconductor chip is connected to the second die pad, and a second portion not connected to the second die pad of the lower surface of the second semiconductor chip is connected to an upper surface of the first semiconductor chip via a second resin material different from the first resin material.

Abstract: A semiconductor device includes a first die pad, a first semiconductor chip provided on the first die pad, a second die pad, a second semiconductor chip provided on the second die pad, and a sealing resin made of a first resin material, sealing the first die pad, the first semiconductor chip, the second die pad and the second semiconductor chip. A lower surface of the first semiconductor chip is connected to the first die pad. A first portion of a lower surface of the second semiconductor chip is connected to the second die pad, and a second portion not connected to the second die pad of the lower surface of the second semiconductor chip is connected to an upper surface of the first semiconductor chip via a second resin material different from the first resin material.

Abstract: A semiconductor device includes a tape carrier substrate having a flexible insulating film base, a plurality of conductor wirings provided on the film base, and wiring bumps respectively formed so as to cover an upper surface and both side surfaces of the conductor wirings, and a semiconductor chip mounted on the tape carrier substrate, wherein electrodes of the semiconductor chip are connected to the conductor wirings via the wiring bumps. Electrode bumps are formed on the electrodes of the semiconductor chip, the electrodes of the semiconductor chip are connected to the conductor wirings via a bonding between the wiring bumps and the electrode bumps, and the electrode bumps are harder than the wiring bumps. This structure can reduce bonding damages to the electrodes of the semiconductor chip caused by a process of connecting the electrodes and the conductor wirings via the bumps.

Abstract: The present invention provides an industrially advantageous production method of optically active tetrahydroquinolines of formula (1), which comprises: 1) a step of reacting a ?-ketoester of formula (2) with an amine of formula (3) to produce an enaminoester of formula (4); 2) a step of subjecting the enaminoester of formula (4) above obtained in 1) to asymmetric hydrogenation to produce an optically active ?-amino acid derivative of formula (5); 3) a step of amidating the optically active ?-amino acid derivative (5) above obtained in 2) to produce an amide of formula (6); 4) a step of alkoxycarbonylating the amide of formula (6) above obtained in 3) to produce a compound of formula (7); and 5) a step of subjecting the compound of formula (7) above to cyclization to produce the optically active tetrahydroquinoline of formula (1).

Abstract: A ligand represented by the formula (1): R1R2N-Q1-X-Q2-NR3R4??(1) wherein R1, R2, R3 and R4 are each the same or different and represent a group represented by the formula (2): wherein Q3 is an optionally substituted alkylene group, an optionally substituted cycloalkylene group, an optionally substituted arylene group, or an optionally substituted divalent heterocyclic group, R5 is an optionally substituted alkyl group, an optionally substituted aryl group or an optionally substituted heterocyclic group and R6 is a substituent which may coordinate or bind to a metal atom, or R5 and R6, taken together, may form a ring, Q1 and Q2 are each the same or different and represent an optionally substituted alkylene group or a single bond, and X is a divalent spacer.

Abstract: A semiconductor device includes a wiring board having a plurality of conductive wires aligned on an insulating base material and a board bump with a plated metal formed on each conductive wire so as to cover an upper surface and both sides of the conductive wire; and a semiconductor chip mounted on the wiring board, with electrodes of the semiconductor chip being connected to the conductive wires via the board bumps. Chip bumps are formed on the electrodes of the semiconductor chip. The electrodes of the semiconductor chip are connected to the conductive wires via a bond between the chip bumps and the board bumps. Protruding portions are formed by part of the plated metal of the board bumps at the bonded portion peeling off and protruding outwardly from a bonding surface of the chip bumps and the board bumps. Mechanical damage to the semiconductor chip caused by ultrasonic vibrations applied during process of mounting the semiconductor chip.

Abstract: The present invention relates to a process for producing amino acid derivatives such as optically active ?-amino acid in short steps with good yield and high optical purity, which comprises reacting a keto acid of the formula (1): wherein R1 is hydrogen, an optionally substituted hydrocarbon, etc.; R2 is a spacer; and R3 is an optionally substituted alkoxy, etc., or a salt thereof, with ammonia or an amine or a salt thereof in the presence of a chiral catalyst and in the presence or absence of an acid and/or a fluorine-containing alcohol, to give an amino acid derivative of the formula (2): wherein Q is a group formed by removing one hydrogen atom from ammonia or an amine; X? is an acid and/or a fluorine-containing alcohol; and b is 0 or 1.

Abstract: A semiconductor device includes a first die pad, a first semiconductor chip provided on the first die pad, a second die pad, a second semiconductor chip provided on the second die pad, and a sealing resin made of a first resin material, sealing the first die pad, the first semiconductor chip, the second die pad and the second semiconductor chip. A lower surface of the first semiconductor chip is connected to the first die pad. A first portion of a lower surface of the second semiconductor chip is connected to the second die pad, and a second portion not connected to the second die pad of the lower surface of the second semiconductor chip is connected to an upper surface of the first semiconductor chip via a second resin material different from the first resin material.