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2 results about "Propargyl ether" patented technology

Propargyl ether was used for the preparation of polyferrocenes, via polyaddition with 1,1′-bis(azidoethyl)ferro cene. It may be used for the preaparation of cyclic polystyrene. General description Propargylic ethers have been reported to participate in the preparation of various diindolylmethanes.

Process for the preparation of benzopyran derivatives containing a thioester structure

ActiveCN119060008BWide range of toleranceEasy to prepareOrganic chemistrySulfonyl chloridePalladium catalyst
The application discloses a preparation method of a benzopyran derivative containing a thioester structure, and comprises the following steps: adding a propargyl ether compound, hexafluoroisopropanol and N-iodosuccinimide into a solvent to react at 50-70 DEG C for 0.5-5 h, then adding a sulfonyl chloride compound, a palladium catalyst, a ligand, a carbonyl molybdenum and a base to react at 80-100 DEG C for 20-28 hours, and after the reaction is completed, post-treatment is carried out to obtain the benzopyran derivative containing the thioester structure; the preparation method uses the sulfonyl chloride compound as a reactant and a sulfur source, uses the carbonyl molybdenum as a carbonyl source, has mild reaction conditions, simple operation, a wide functional group tolerance range of a substrate and high reaction efficiency. According to actual needs, various benzopyran derivatives containing the thioester structure can be synthesized, and the method is convenient to operate and wide in practicability.
Owner:ZHEJIANG SCI-TECH UNIV

A method for preparing a benzopyran derivative containing an amide structure

ActiveCN119161318BOrganic chemistryNitro compoundEthylic acid
The application discloses a preparation method of a benzopyran derivative containing an amide structure, which comprises the following steps: reacting propargyl ether compound, hexafluoroisopropanol and N-iodosuccinimide at 60 DEG C for 1 h, then adding a nitro compound, palladium acetate, 2-diphenylphosphine-biphenyl, carbonyl molybdenum, potassium carbonate and water to react at 100 DEG C for 24 h, and after the reaction is completed, post-treatment is carried out to obtain the benzopyran derivative containing the amide structure. The preparation method uses the nitro compound as a reactant and a nitrogen source, and uses the carbonyl molybdenum as a carbonyl source, has mild reaction conditions, simple operation, a wide functional group tolerance range of a substrate and high reaction efficiency. According to actual needs, various benzopyran derivatives containing the amide structure can be synthesized, and the method is convenient to operate and wide in practicability.
Owner:ZHEJIANG SCI-TECH UNIV