摘要:
Disclosed are: (1) a method for producing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal, which comprises the step of providing a reaction mixture containing 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene by a process for reacting 1,2-methylenedioxybenzene with 2-methyl-3,3-diacetoxypropene or a process for reacting 1,2-methylenedioxybenzene, methacrolein and acetic anhydride with one another; subjecting the reaction mixture to hydrolysis or transesterification with an alcohol to provide a reaction mixture containing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal; and purifying by distilling the reaction mixture, wherein a high boiling point compound contained in the reaction mixture is removed by a specific procedure; and (2) 2-methyl-3-(3,4-methylenedioxyphenyl)-propanal produced by the method, which has an acetic acid content of a less than 40 ppm, is useful as a perfume, and has a high purity.
摘要:
An object of the present invention is to provide an industrially advantageous process for preparing a benzaldehyde compound from a benzyl alcohol compound with high yield.The present invention relates to a process for preparing an aromatic aldehyde compound represented by the formula (2); which comprises reacting an aromatic methyl alcohol compound represented by the formula (1); and a peroxide under a pH value of a reaction solution being pH 0.01 or higher and less than 10 in the presence of at least one metallic compound selected from a molybdenum compound and a tungsten compound, a quaternary ammonium salt and an organic phosphonium salt.
摘要:
The present invention relates to a process for producing laurolactam from cyclododecanone oxime by liquid-phase rearrangement reaction using trichlorotriazine as a rearrangement catalyst. The present invention can provide a process which can solve the problem of termination of the reaction at a certain conversion, can prevent an inactive precipitate generated from trichlorotriazine from precipitating in the course of the reaction process, and can remove an inactive precipitate, an active intermediate and a residual catalyst.
摘要:
An image output controller is capable of directly or indirectly controlling a printer printing a color chart and a color measuring apparatus carrying out color measurement for the color chart. When color authentication is executed for an optionally set image, a process is carried out in relation to user's setting or automatic optimization including at least one of a printing position of the color chart, a layout of the color chart and a color value of the color chart. The printer is controlled according to a printing condition based on the user's setting or the automatic optimization so that the color chart is printed on a sheet of predetermined printing paper. The color measuring apparatus is controlled so as to carry out color measurement for the printed color chart.
摘要:
The present invention provides an indoor unit of an air conditioner, which is capable of improving the mounting accuracy between a front grill and a movable panel. An indoor unit of the air conditioner includes a main body casing, a front grill, a second panel, a driving machine, and an opening and closing mechanism. The front grill is provided forward of the main body casing and includes a first intake port. The second panel is capable of moving so as to open and close the first intake port. The driving machine is provided in the main body casing, and generates a driving force to move the second panel. The opening and closing mechanism is provided at the front grill, and moves the second panel by the driving force of the driving machine to open and close the first intake port.
摘要:
A small-sized electric positioning and clamping apparatus is provided. A panel material is supported on a workpiece supporting face and is positioned by a locating pin being fitted into a positioning hole. A clamp arm is accommodated in a slit formed in the locating pin, and the panel material is clamped by the clamp arm. The clamp arm is coupled to a driven rod, and the driven rod is coupled to a driving rod via a compression coil spring. A cam face is formed in a cam block assembled reciprocably in a gear box, and an engagement cam contacting with the cam face is attached to the driving rod. The cam block is reciprocated by an electric motor via a reduction gear mechanism.
摘要:
The present invention provides an indoor unit of an air conditioner, which is capable of improving the safety regarding the opening and closing movements of a movable panel. An indoor unit of an air conditioner includes a front grill, a second panel, a driving machine, and a second panel supporting member. The front grill is provided with a first intake port at a front thereof. The second panel is provided such that it covers the first intake port, opens the first intake port by moving away from the first intake port and closes the first intake port by moving close to the first intake port. The driving machine generates a driving force to move the second panel. The second panel supporting member has a gear portion and a plate member. The gear portion transmits the driving force of the driving machine to the second panel. The plate member is provided outside the gear portion, and covers a gap between the second panel and the front grill in a state in which the second panel is open.
摘要:
A solid-state imaging device, includes: a substrate where a region of a first conductivity type is formed on at least a portion of a surface thereof; a region of a second conductivity type formed on at least a portion of a surface of the region of the first conductivity type; a multilayer wiring layer formed on the substrate; and a layer of the second conductivity type formed directly above the region of the second conductivity type in the multilayer wiring layer, connected to the region of the second conductivity type. A concentration of impurities in the layer of the second conductivity type is lower with decreasing proximity to the region of the second conductivity type.
摘要:
A charged particle beam adjustment apparatus for tilting an electron beam by a tilt deflector is disclosed. The tilt angle adjustment of the electron beam and the distortion adjustment for correcting the image distortion generated when the electron beam is tilted are conducted on a specified. sample such as a pyramidal sample. The images before and after the tilting are acquired and processed to determine the tilt angle value and the distortion amount. The tilt angle adjustment and the adjustment for correction of the distortion are automated in accordance with a predetermined processing flow.
摘要:
A charged particle beam apparatus produces little reduction in resolution when the beam is inclined with respect to a sample. The trajectory of a primary beam 4 is deflected by a deflector or changed by a movable aperture such that the beam is incident on a plurality of lenses 6 and 7 off the axes thereof. A means is provided to control the off-axis trajectory of the beam such than an aberration produced by the objective lens 7 when the beam is inclined can be canceled by an aberration produced by the other lens 6.