40 results about "Acetylenic Compounds" patented technology

An inkjet ink includes: an ink vehicle; a colorant; and an acetylenic compound having an alkoxylated hydroxyl group, wherein the hydroxyl group is a primary or secondary hydroxyl group and the acetylenic compound is absent a lipophilic group. Printheads having resistive heater elements exposed to such inks have prolonged lifetimes compared to reference inks.

An inkjet ink includes: an ink vehicle; a colorant; and an acetylenic compound having an alkoxylated hydroxyl group, wherein the hydroxyl group is a primary or secondary hydroxyl group and the acetylenic compound is absent a lipophilic group. Printheads having resistive heater elements exposed to such inks have prolonged lifetimes compared to reference inks.

The invention relates to novel compounds according to formula Ia and Ib; (Formula Ia and Ib) wherein A represents substituted or unsubstituted C1-10heteroaryl, C6-14aryl or C6- 10heterocycloalkylaryl; R1 is C1-6alkyl, C2-6alkenyl, C2-6alkynyl, C1-6hydroxyalkyl, C1-6haloalkyl, C1-6amino, C3-6 cycloalkyl, or C1-6heterocycloalkyl, each of which are optionally substituted; X represents -CR3R4-(CR5R6)n-(CR7=CR8)m-(C6-14aryl)r-(C1-10heteroaryl)s-(CR9R10)p- (CR11 = CR12)q, R2 represents C1-6alkyl, C2-6alkenyl, C2-6alkynyl, C1-6hydroxyalkyl, C1-6haloalkyl, C1-6amino, C1-12alkylsilyl, C6-30alkylarylsilyl, C1-10heteroaryl, C6-14aryl, C1-10heterocycloalkyl, C1-10heterocycloalkenyl, C1-8cycloalkyl, C1-18cycloalkenyl, each of which is optionally substituted, or R2 represents hydrogen, carboxy, or hydroxy; or a pharmaceutically acceptable salt, solvate, or ester thereof; to processes for the preparation thereof, to said compounds for use in therapy, to pharmaceutical compositions comprising said compounds, wherein said compounds being useful, e.g. in the treatment of diseases associated with disturbances of CaSR activity, such as hyperparathyroidism.

The invention provides a lithium ion secondary battery positive pole piece which comprises a current collector, a positive active material, a conductive agent and a binder, the positive active material contains a transition metal, and the transition metal surface is boned, by chemical bonds, with one or more substance selected from an acetylenic compound with 2-10 carbon atoms and a derivative thereof, mercaptan, sulfide and phosphine with 1-10 carbon atoms and an alkyl substituted phosphide with 1-10 carbon atoms. The lithium ion secondary battery positive pole piece in the embodiment overcomes the problem that an electrolyte is catalyzed for oxygenolysis by the transition metal in the positive active material of a lithium ion secondary battery in the prior art, so that the cycle performance of the lithium ion secondary battery under a high voltage of 4.5V and above can be improved. The embodiment of the invention also provides a preparation method of the lithium ion secondary battery positive pole piece, and a lithium ion secondary battery comprising the lithium ion secondary battery positive pole piece.

The invention discloses a method for synthesizing a palladium catalyst by utilizing alkyne compounds and relates to a synthesizing method of a palladium catalyst. The method comprises the following steps: adding a Pd precursor in a solvent; then adding a carrier and an alkyne compound sequentially to have a reaction; at the end of the reaction, separating, washing and drying the obtained product, thus obtaining the palladium catalyst, wherein the obtained palladium catalyst is a polymerization-alkyne-loaded palladium catalyst. Alkyne is subjected to polymerization reaction in the presence of Pd; meanwhile, Pd also can be coordinated with the generated polymer, thereby obtaining a polymerization-alkyne-immobilized Pd catalyst. Meanwhile, in order to enable the obtained catalyst to be more practical, the catalyst can be adsorbed on the carrier in situ as long as a proper amount of carrier is added directly in the reaction solution, and further an immobilized catalyst is obtained. The obtained product is easy to separate and process, and is stable to air and water. The method is simple and feasible; raw materials are easily available and are easy to synthesize in a large scale. Meanwhile, the catalyst shows favorable catalytic activity and has a wide actual application prospect.

The invention provides an addition type solidifiable polysiloxane composition which is prepared from the following components of (A) organopolysiloxane with two or a plurality of alkenyls, (B) organic hydrogenated polysiloxane, (C) a platinum group metal catalyst and (D) an alkoxy silanization acetylenic compound. Each molecule of the organic hydrogenated polysiloxane comprises more than two silicon elements bonded with hydrogen atoms. The composition can be stored for a long time in a room temperature. In high-temperature solidification, the surface and the inside of the composition can be evenly solidified, and a cured product is smooth in surface and free of wrinkle. The addition type solidifiable polysiloxane composition can be widely applied to the fields of a pouring material, a coating material and addition type silicone rubber of an electronic device and liquid injection moulding silicone rubber.

The invention discloses a heterocyclic nitrogen-dibenz-cyclooctyne class compound and a preparation method of the heterocyclic nitrogen-dibenz-cyclooctyne class compound, and belongs to the field of organic chemical synthesis. The structural general formula of the compound is shown in the formula I. 5-dibenz cycloheptene ketene serves as a starting material, final end product heterocyclic nitrogen-dibenz-cyclooctyne hydrochloride is obtained through the reactions of oximation, Beckmann rearrangement, amid reduction, protection, addition, debromination, deprotection and the like, and the total yield is higher than 73.6%. The raw material is easy to obtain, after-treatment is convenient and easy to operate, and the total yield is high. The heterocyclic nitrogen-dibenz-cyclooctyne class compound without a substituent on nitrogen atoms is synthezied for the first time, a novel method can be provided for synthesizing a heterocyclic nitrogen-dibenz-cyclooctyne class compound with different substituents on the nitrogen atoms, especially for synthesizing multiple heterocyclic nitrogen-dibenz-cyclooctyne class compounds with the different substituents on the nitrogen atoms, wherein the heterocyclic nitrogen-dibenz-cyclooctyne class compounds are not easy to prepare through other methods, a product of the heterocyclic nitrogen-dibenz-cyclooctyne class compound can serve as the raw material, and H on nitrogen is replaced by the needed R base.