30504-61-1

Upstream product

• 1111-97-3 3-chloro-3-methylbut-1-yne 
• 100-67-4 potassium phenolate 
• 108-95-2 phenol 
• 19021-53-5 methyl (2-methylbut-3-yn-2-yl)carbonate 
• 61570-79-4 1,1-dimethyl-2-propynyl trifluoroacetate 
• 115-19-5 2-methyl-but-3-yn-2-ol 

Downstream Products

• 34125-70-7 ((2-methylbut-3-en-2-yl)oxy)benzene 
• 1128-92-3 2-prenylphenol 

Relevant academic research and scientific papers

BTK Inhibitors and uses thereof

The invention discloses a bruton's tyrosine kinase (BTK) inhibitor and use thereof. Specifically, the invention provides heteroaromatic compounds or stereoisomers, geometrical isomers, tautomers, racemates, nitrogen oxides, hydrates, solvates, metabolites and pharmaceutically acceptable salts or prodrugs thereof, and pharmaceutical compositions containing the heteroaromatic compounds; the invention also discloses use of the heteroaromatic compounds or the pharmaceutical compositions containing the heteroaromatic compounds in preparation of medicines; the medicines can be used for treating autoimmune diseases, inflammatory diseases or proliferative diseases.

Copper-catalyzed intramolecular carbotrifluoromethylation of alkynes for the construction of trifluoromethylated heterocycles

A mild and efficient copper-catalyzed intramolecular carbotrifluoromethylation of alkynes has been achieved in the presence of Togni reagent as trifluoromethylating reagent. The reaction tolerates a range of substrates to give a group of trifluoromethylated heterocycles with high selectivities. A plausible mechanism was proposed on the basis of experimental results. And the Togni award goes to Copper-catalyzed intramolecular carbotrifluoromethylation of alkynes is carried out with a Togni reagent as the trifluoromethylating reagent (see scheme). Various trifluoromethylated heterocycles are synthesized in moderate to good yields. Moreover, a range of common functional groups is tolerated under the reaction conditions.

Gold nanoparticles supported on TiO2 catalyse the cycloisomerisation/oxidative dimerisation of aryl propargyl ethers

Gold nanoparticles supported on TiO2 (～1%) catalyse in high yields the selective cycloisomerisation of aryl propargyl ethers into the corresponding 2H-chromenes, under heterogeneous conditions. 2H,2′H-3, 3′-Bichromenes resulting from a catalytic oxidative dimerization pathway are also formed as by-products. The Royal Society of Chemistry 2011.

Ph3PAuNTf2 as a superior catalyst for the selective synthesis of 2H-chromenes: Application to the concise synthesis of benzopyran natural products

Ph3PAuNTf2 (≈1 mol-%) catalyzes the selective cycloisomerization of substituted aryl propargyl ethers into 2H-chromenes in excellent yields. Benzofuran byproducts are formed only in the case of electron-deficient arenes, in up to 7% relative yield. The Ph 3PAuNTf2-catalyzed cyclization of aryl propargyl ethers was applied as a key step to the concise synthesis of the naturally occurring benzopyrans seselin, xanthyletin, precocenes I and II, 8-(3′,3′- dimethylallyl)wenteria chromene, and 2,2-dimethyl-8-prenylchromene-6-propenoic acid. Ph3PAuNTf2 is a general, highly efficient, and product-selective catalyst for the clean synthesis of 2H-chromenes from the cycloisomerization of aryl propargyl ethers.The Ph3PAuNTf 2-catalyzed cyclization was applied as a key step in the synthesis of several benzopyran-bearing naturally occurring substances. Copyright

Copper(I) iodide: A catalyst for the improved synthesis of aryl propargyl ethers

Copper(I) iodide catalyses the reaction between phenols and dialkylpropargyl chlorides to give aryl 1,1-dialkylpropargyl ethers 5 a-k and 7a-e in good yields and purity. These ethers are important as precursors to the 2H-1-benzopyrans 8a-l and 9a-e.

Improved Synthesis of Aryl 1,1-Dimethylpropargyl Ethers

An efficient, general, and practical synthesis of aryl 1,1-dimethylpropargyl ethers has been developed.