摘要:
The present invention relates to [1] a process for producing a 2-alkyl-2-cycloalken-1-one represented by the following general formula (2), which includes the step of subjecting a 2-(1-hydroxyalkyl)cycloalkan-1-one to dehydration and isomerization in the co-existence of an acid and a platinum group metal catalyst, and [2] a process for producing an alkyl(3-oxo-alkylcycloalkyl)acetate which is useful as a perfume material, using the 2-alkyl-2-cycloalken-1-one: wherein n is an integer of 1 or 2; and R1 and R2 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms with the proviso that R1 and R2 may form a ring through a carbon atom adjacent thereto.
摘要:
The present invention relates to [1] a process for producing a 2-alkyl-2-cycloalken-1-one represented by the following general formula (2), which includes the step of subjecting a 2-(1-hydroxyalkyl)cycloalkan-1-one to dehydration and isomerization in the co-existence of an acid and a platinum group metal catalyst, and [2] a process for producing an alkyl(3-oxo-alkylcycloalkyl)acetate which is useful as a perfume material, using the 2-alkyl-2-cycloalken-1-one: wherein n is an integer of 1 or 2; and R1 and R2 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms with the proviso that R1 and R2 may form a ring through a carbon atom adjacent thereto.
摘要:
The present invention relates to a process for producing a 2-alkyl-2-cycloalken-1-one represented by the following general formula (2), including the step of reacting a 2-alkylidene cycloalkanone in the presence of a palladium and/or platinum catalyst which is treated in the following steps (a) and (b); and a method for activating the palladium and/or platinum catalyst including the following steps (a) and (b): Step (a): activating the palladium and/or platinum catalyst in an atmosphere containing a hydrogen gas; and Step (b): replacing the hydrogen gas being present as the atmosphere for the catalyst in the step (a), with an inert gas to remove the hydrogen gas out of the reaction system, wherein m is 0 to 3; n is 1 or 2; R1 and R2 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; and R3 is an alkyl group having 1 to 5 carbon atoms. In accordance with the present invention, the 2-alkyl-2-cycloalken-1-one can be produced with a high purity and a high productivity.
摘要翻译:本发明涉及一种由以下通式(2)表示的2-烷基-2-环烯烃-1-酮的制备方法,包括使2-亚烷基环烷酮在钯和/或 铂催化剂,其在以下步骤(a)和(b)中处理; 以及包括以下步骤(a)和(b)活化钯和/或铂催化剂的方法:步骤(a):在包含氢气的气氛中活化钯和/或铂催化剂; 和步骤(b):用惰性气体代替在步骤(a)中作为催化剂的气氛存在的氢气,以将氢气从反应体系中除去,其中m为0-3; n为1或2; R 1和R 2各自独立地为氢原子或具有1至8个碳原子的烷基; R3为碳原子数为1〜5的烷基。 根据本发明,可以以高纯度和高生产率制备2-烷基-2-环烯烃-1-酮。
摘要:
The present invention relates to a process for producing a 2-alkyl-2-cycloalken-1-one represented by the following general formula (2), including the step of reacting a 2-alkylidene cycloalkanone in the presence of a palladium and/or platinum catalyst which is treated in the following steps (a) and (b); and a method for activating the palladium and/or platinum catalyst including the following steps (a) and (b): Step (a): activating the palladium and/or platinum catalyst in an atmosphere containing a hydrogen gas; and Step (b): replacing the hydrogen gas being present as the atmosphere for the catalyst in the step (a), with an inert gas to remove the hydrogen gas out of the reaction system, wherein m is 0 to 3; n is 1 or 2; R1 and R2 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; and R3 is an alkyl group having 1 to 5 carbon atoms. In accordance with the present invention, the 2-alkyl-2-cycloalken-1-one can be produced with a high purity and a high productivity.
摘要翻译:本发明涉及一种由以下通式(2)表示的2-烷基-2-环烯烃-1-酮的制备方法,包括使2-亚烷基环烷酮在钯和/或 铂催化剂,其在以下步骤(a)和(b)中处理; 以及包括以下步骤(a)和(b)活化钯和/或铂催化剂的方法:步骤(a):在包含氢气的气氛中活化钯和/或铂催化剂; 和步骤(b):用惰性气体代替在步骤(a)中作为催化剂的气氛存在的氢气,以将氢气从反应体系中除去,其中m为0-3; n为1或2; R 1和R 2各自独立地为氢原子或具有1至8个碳原子的烷基; R3为碳原子数为1〜5的烷基。 根据本发明,可以以高纯度和高生产率制备2-烷基-2-环烯烃-1-酮。
摘要:
An active energy beam-curable composition is provided, which is excellent in coatability to films and safety, and particularly suitable for use in a light diffusion film since a light diffusion film made of a cured product of the composition is excellent in both haze and total light transmittance. The active energy beam-curable composition comprises an ethylenically unsaturated group-containing compound (A) that contains, as an essential component thereof, a compound having an ethylenically unsaturated group and an aromatic group, and a granular substance (B) that is insoluble in the component (A), in which the subtraction of the refractive index of the component (B) from the refractive index of a cured product of the component (A) alone is not less than 0.03 and not more than 0.18.
摘要:
Polysaccharide derivatives derived from a polysaccharide or a derivative thereof by substituting a part or all of the hydrogen atoms of the hydroxyl groups of the polysaccharide or the derivative thereof with the groups represented by the following formula (1): —E1—(OA)n—E2—R (1) wherein E1 represents a divalent saturated C1-6 hydrocarbon group which may be substituted with one or more hydroxyl groups or oxo groups, n stands for a number of from 8 to 300, n numbers of As may be the same or different and each independently represent a divalent saturated C1-6 hydrocarbon group, E2 represents an ether bond or an oxycarbonyl group, and R represents a C4-30 alkyl group which may be substituted with one or more hydroxyl groups, in which the H(s) of one or more hydroxy groups in each of said groups (1) may be further substituted with the groups (1); thickeners and emulsifiers comprising these polysaccharide derivatives; as well as aqueous compositions containing said polysaccharide derivatives. The polysaccharide derivatives of the present invention are excellent in water solubility and have such a rheological characteristic that the viscosity thereof increases at high temperatures, whereby they are very useful as a thickener exhibiting an excellent handling property at low temperatures and a sufficient thickening effect at high temperatures, as an emulsifier exhibiting an excellent emulsifying action allowing hydrophobic compounds to exist very stably in water, and also as a thickening and stabilizing agent for various toiletry products such as viscous bath preparations, massaging cosmetic preparations, shower preparations, skin care preparations, hair washing preparations, body washing preparations, garment detergents, garment finishing agents and hard surface cleaning agents.
摘要:
A method and apparatus of controlling an air conditioner. The discharge temperature of a compressor and the indoor heat exchanger temperature are steadily controlled to set temperatures as close as possible, suppressing hunting of the frequency of an inverter. A temperature sensor is provided for detecting the temperature of the indoor heat exchanger or the discharge temperature of the compressor. A control unit is further provided, and judges as to in which temperature zone among at least preset four temperature zones the detected temperature is. Then, the control unit outputs frequency control signals to the inverter to perform the following operations: when the detected temperature is in the lowest temperature zone, the output frequency of the inverter is increased at a predetermined speed; in a lower intermediate temperature zone the frequency is slowly increased; in an upper intermediate temperature zone below a set temperature the current frequency is maintained; and in a temperature zone above the set temperature the frequency is decreased at a predetermined speed.
摘要:
A louver is provided at an air outlet of an indoor unit. The louver changes the direction of air into the room and swings in a horizontal direction of the room. On the other hand, a temperature sensor unit is provided on the indoor unit. The temperature sensor unit senses temperatures at a plurality of locations in the room. A difference between sensed temperatures of the temperature sensor unit is detected, and the center of swing of the louver is set at a position determined on the basis of the detection result. Further, the angle of swing of the louver is changed in accordance with the detection result.
摘要:
An information processing apparatus includes a receiving unit that receives messages, and a control unit that sends an editing message indicating that a reply message responding to a received message received by the receiving unit is being edited, to a sending source of the received message.
摘要:
To provide a light diffusion film that contributes lightweight with reduction in thickness, a planar light source element utilizing the light diffusion film, and a liquid crystal display device utilizing the light diffusion film and/or the planar light source element. A light diffusion film (25) having a plurality of projections (23) of a specific shape is at least partly formed from a composition containing a mixture of a photocurable compound and a particulate material. A light guide plate (22), provided with one or more light sources (21) at one side face thereof, is bonded to vertexes of the projections (23) to provide a planar light source element, which is thin and lightweight and capable of emitting non-glaring light uniformly from the entire surface thereof.