Abstract: A process for the preparation of a compound of formula IX: wherein R1 is difluoromethyl, and R3 is methyl or ethyl.

Abstract: A rubber frame, a backlight module and a display device are provided by the present disclosure, the rubber frame is applied to the backlight module and includes a soft rubber body. The soft rubber body includes a first section, a second section, a third section and a fourth section. At least one section is provided with a first fixing portion configured to fix a display panel.

Abstract: The present invention provides a process for the preparation of a compound of formula I: wherein R1 is C1-C4 haloalkyl; R2 is optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; and R3 is methyl or ethyl; comprising reacting a compound of formula IV: wherein R1, R2 and R3 are as defined for the compound of formula I; with an alkylating agent in the presence of an amide.

Abstract: A rubber frame, a backlight module and a display device are provided by the present disclosure, the rubber frame is applied to the backlight module and includes a soft rubber body. The soft rubber body includes a first section, a second section, a third section and a fourth section. At least one section is provided with a first fixing portion configured to fix a display panel.

Abstract: An electric connecting member and an LED lamp using the electric connecting member are provided. The electric connecting member is used for the electric connection between a light source substrate and a driving board of the LED lamp, and comprises an input terminal and an output terminal. The LED lamp comprises the driving board and the light source substrate. The output terminal is provided on the driving board of the LED lamp. The input terminal is disposed upon the light source substrate and is electrically connected to the light source substrate. The output terminal comprises two contacts, and one end of each of the two contacts is electrically connected to the driving board respectively. The input terminal comprises two connection heads which are respectively provided corresponding to the two contacts. One end of each of the two connection heads is electrically connected to the light source substrate respectively.

Abstract: The present invention provides a process for the preparation of a compound of formula I: wherein R1 is C1-C4 haloalkyl; R2 is optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; and R3 is methyl or ethyl; comprising reacting a compound of formula IV: wherein R1, R2 and R3 are as defined for the compound of formula I; with an alkylating agent in the presence of an amide.

Abstract: The present invention provides a process for the preparation of a compound of formula (I) wherein R1 is C1-C4 haloalkyl; R2 is optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; and R3 is methyl or ethyl; comprising reacting a compound of formula (IV) wherein R1, R2 and R3 are as defined for the compound of formula I; with an alkylating agent in the presence of an amide.

Abstract: An electric connecting member and an LED lamp using the electric connecting member are provided. The electric connecting member is used for the electric connection between a light source substrate and a driving board of the LED lamp, and comprises an input terminal and an output terminal. The LED lamp comprises the driving board and the light source substrate. The output terminal is provided on the driving board of the LED lamp. The input terminal is disposed upon the light source substrate and is electrically connected to the light source substrate. The output terminal comprises two contacts, and one end of each of the two contacts is electrically connected to the driving board respectively. The input terminal comprises two connection heads which are respectively provided corresponding to the two contacts. One end of each of the two connection heads is electrically connected to the light source substrate respectively.

Abstract: The invention provides a process for the preparation of a compound of formula (I) in particular, wherein a compound of formula (II) is reacted with a dialkylsulphate. R1 is C1-C4haloalkyl; R2 is optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; and R3 is methyl or ethyl.

Abstract: The present invention provides a process for the preparation of a compound of formula (I) wherein R1 is C1-C4 haloalkyl; R2 is optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; and R3 is methyl or ethyl; comprising reacting a compound of formula (IV) wherein R1, R2 and R3 are as defined for the compound of formula I; with an alkylating agent in the presence of an amide.

Abstract: The present invention relates to processes for the preparation of a compound of formula (I) comprising reacting a compound of formula (IV) with a compound of formula III or (IIIA) in the presence of an acid; wherein R1 is C1-C4 haloalkyl; R2 is optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; R3 is methyl or ethyl; R4 is hydrogen, optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; and n is 0 or 1.

Abstract: A bridgeless PFC circuit is provided. A low-frequency bridge leg includes a first diode and a second diode connected in series; a three-port network includes a switch tube and an inductor; a lightning and surge protection bridge leg includes a third diode and a fourth diode connected in series; a capacitor is connected between terminals of the low-frequency bridge leg, and between terminals of the lightning and surge protection bridge leg; a common terminal of the first and second diodes is connected to a terminal of an AC power, and a common terminal of the third and fourth diodes is connected to the other terminal; and the three-port network has two ports with the capacitor connected therebetween, and another port connected to the common terminal of the third and fourth diodes. Thus, EMI performance and efficiency can be improved and costs of the whole circuit can be lowered.

Abstract: The present invention relates to processes for the preparation of a compound of formula (I) comprising reacting a compound of formula (IV) with a compound of formula III or (IIIA) in the presence of an acid; wherein R1 is C1-C4 haloalkyl; R2 is optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; R3 is methyl or ethyl; R4 is hydrogen, optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; and n is 0 or 1.

Abstract: The invention provides a process for the preparation of a compound of formula (I) in particular, wherein a compound of formula (II) is reacted with a dialkylsulphate. R1 is C1-C4haloalkyl; R2 is optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl; and R3 is methyl or ethyl.

Abstract: A process for the production of a compound of formula (I), which comprises a) reacting a compound of formula (II), wherein R1 and R2 are both independently C1-C6 alkyl, with methylhydrazine in the presence of water and a water-immiscible organic solvent being inert in saponification reactions, to form a compound of formula (III) wherein R1 is as defined for formula (II) and b) saponifying that compound in situ leading to the formation of the compound of formula (I) by b1) adding a base to form the anion of the compound of formula (I) and then adding an; acid to form the compound of formula (I); or b2) adding an acid to form the compound of formula (I).

Abstract: The present invention relates to a process for the production of compounds of formula (I) wherein X is fluoro, chloro, bromo or iodo and n is 1, 2, 3 or 4, which process comprises reacting a compound of formula (II) wherein the substituents are as defined for formula (I), with inorganic nitrite in an acidic aqueous medium in the presence of bromide and a copper catalyst and wherein the process is carried out as a one-pot reaction.

Abstract: The present invention provides a process for the production of intermediate compounds of formula (I), wherein the substituents are as defined herein. The process comprises reacting a substituted aniline with aqueous HX, followed by removal of water by azeotropic distillation and diazotization and pyrolysis with an organic nitrite at elevated temperatures in the absence of a copper catalyst. Alternatively, gaseous HX can be used to substitute aqueous HX in the process. Consequently, a step of water removal by azeotropic distillation can be eliminated. The intermediate compounds of formula I are suitable as intermediates in the preparation of herbicidally active 3-hydroxy-4-aryl-5-oxopyrazoline derivatives.

Abstract: The present invention relates to a process for the production of compounds of formula (I) wherein X is fluoro, chloro, bromo or iodo and n is 1, 2, 3 or 4, which process comprises reacting a compound of formula (II) wherein the substituents are as defined for formula (I), with inorganic nitrite in an acidic aqueous medium in the presence of bromide and a copper catalyst and wherein the process is carried out as a one-pot reaction.

Abstract: The present invention provides a process for the production of intermediate compounds of formula (I), wherein the substituents are as defined herein. The process comprises reacting a substituted aniline with aqueous HX, followed by removal of water by azeotropic distillation and diazotization and pyrolysis with an organic nitrite at elevated temperatures in the absence of a copper catalyst. Alternatively, gaseous HX can be used to substitute aqueous HX in the process. Consequently, a step of water removal by azeotropic distillation can be eliminated. The intermediate compounds of formula I are suitable as intermediates in the preparation of herbicidally active 3-hydroxy-4-aryl-5-oxopyrazoline derivatives.

Abstract: The present invention relates to a novel improved process and intermediates for the process of preparing the oxime intermediates of formula (II) wherein R1 is hydrogen, fluoro or chloro, and R2 is methyl, ethyl, methoxy, ethoxy, trifluoromethyl, trifluoromethoxy, cyano, fluoro, chloro or bromo. The novel process comprises diazotizing an aniline of formula (VI) reacting the resulting diazonium salt with isopropenylacetate of formula (X) and reacting the resulting ketone of formula (XI) with an organic nitrite in the presence of hydrogene chloride, and methylating the resulting ketooxime of formula (VIII) with a methylating agent and reacting the resulting O-methyl ketooxime of formula (IX) with hydroxylamine. The compounds of formula (II) are intermediates for highly active fungicides from the class of the atrobilurins.