Patent classifications
C07C403/08
Methods and compositions for treating atopic dermatitis
The present invention provides methods and compositions for treating atopic dermatitis by cyclohexenone compounds.
INTERMEDIATES FOR THE VITAMIN A SYNTHESIS
Processes for synthesizing new compounds that may usefully be employed in organic synthesis, especially in the synthesis of vitamin A or β-carotene and derivatives thereof, e.g. canthaxanthin, astaxanthin or zeaxanthin are disclosed. The new compounds are especially useful as intermediates (building blocks) in the synthesis of vitamin A or β-carotene, preferably vitamin A.
ETHYNYLATION OF POLYUNSATURATED ALDEHYDES AND KETONES
The present invention relates to a catalytic process for the ethynylation of specific polyunsaturated aldehydes and ketones.
ETHYNYLATION OF POLYUNSATURATED ALDEHYDES AND KETONES
The present invention relates to a catalytic process for the ethynylation of specific polyunsaturated aldehydes and ketones.
CATALYTIC ETHYNYLATION
The present invention relates to the catalytic ethynlation of αβ-unsaturated ketones for producing tertiary acetylenic alcohols.
Intermediates for the vitamin A synthesis
Processes for synthesizing new compounds that may usefully be employed in organic synthesis, especially in the synthesis of vitamin A or -carotene and derivatives thereof, e.g. canthaxanthin, astaxanthin or zeaxanthin are disclosed. The new compounds are especially useful as intermediates (building blocks) in the synthesis of vitamin A or -carotene, preferably vitamin A.
Intermediates for the vitamin A synthesis
Processes for synthesizing new compounds that may usefully be employed in organic synthesis, especially in the synthesis of vitamin A or -carotene and derivatives thereof, e.g. canthaxanthin, astaxanthin or zeaxanthin are disclosed. The new compounds are especially useful as intermediates (building blocks) in the synthesis of vitamin A or -carotene, preferably vitamin A.
NEW INTERMEDIATES FOR THE VITAMIN A SYNTHESIS
The present invention relates to the compound of formula (I). The invention further relates to the compound of formula (II). The invention further relates to the synthesis of these compounds as well as to their use in organic synthesis, especially in the synthesis of vitamin A or p-carotene and derivatives thereof, e.g. canthaxanthin, astaxanthin or zeaxanthin.
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PdIn alloy catalyst, method for manufacturing PdIn alloy catalyst and application thereof
The present disclosure provides a PdIn alloy catalyst including a carrier and Pd metal particles supported by the carrier, the carrier is a nitrogen-doped porous carbon composite material having a plurality of passages, Pd metal particles are distributed in the plurality of passages, the nitrogen-doped porous carbon composite material includes a nitrogen-doped porous carbon material, a plurality of indium oxide particles, and In metal particles. The In metal particles are exposed through the plurality of passages, the plurality of indium oxide particles are uniformly distributed in the nitrogen-doped porous carbon material, and In atoms of the In metal particles migrated to surfaces of Pd particles selectively occupy edge and corner positions of metal lattice of Pd metal particles. The present disclosure further provides a method for manufacturing the PdIn alloy catalyst and application thereof.
FREE RADICAL- AND REACTIVE OXYGEN SPECIES-REACTING COMPOUNDS
Provided are compounds that generate a peroxide when they react with ozone in the presence of water. Additionally, alkyne compounds reactive with a free radical, a reactive oxygen species (ROS) or another reactive species are provided. Also provided are enol ether, enamine, and vinal thioester compounds reactive with a free radical, a strong acid, a reactive oxygen species (ROS) or another reactive species. Additionally provided are compounds reactive with a free radical, an ROS or another reactive species. The compounds comprise a conjugated moiety operably joined to an alkene moiety and a resonance-transmitting moiety, wherein the resonance-transmitting moiety transmits an electron through the conjugated moiety to the alkene moiety, which reacts with the free radical, an ROS or another reactive species. Also provided are methods of decomposing a free radical, an ROS or another reactive species. The methods comprise contacting the free radical or ROS with any of the above compounds. Also provided are methods of using any of the compounds described herein, and compositions comprising those compounds. Additionally provided are methods of producing the above compounds.