164171-92-0

Basic information

• Product Name: 1-(phenylethynyl)-4-(trifluoromethoxy)benzene
• Synonyms: 1-(phenylethynyl)-4-(trifluoromethoxy)benzene
• CAS NO: 164171-92-0
• Molecular Weight: 262.231
• Mol File: 164171-92-0.mol
• Article Data: 11

Chemical Properties

• CAS DataBase Reference: 1-(phenylethynyl)-4-(trifluoromethoxy)benzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(phenylethynyl)-4-(trifluoromethoxy)benzene(164171-92-0)
• EPA Substance Registry System: 1-(phenylethynyl)-4-(trifluoromethoxy)benzene(164171-92-0)

Safety Data

• Hazardous Substances Data: 164171-92-0(Hazardous Substances Data)

Upstream product

• 637-44-5 phenylpropyolic acid 
• 685542-10-3 4-trifluoromethoxyphenylsulfonyl hydrazide 
• 536-74-3 phenylacetylene 
• 330-12-1 4-trifluoromethoxybenzoic acid 
• 103962-05-6 1-iodo-4-(trifluoromethoxy)benzene 

Relevant articles and documents

Palladium-catalyzed decarbonylative sonogashira coupling of terminal alkynes with carboxylic acids

A direct decarbonylative Sonogashira coupling of terminal alkynes with carboxylic acids was achieved through palladium catalysis. This reaction did not use overstoichiometric oxidants, thus overcoming the homocoupling issue of terminal alkynes. Under the reaction conditions, a wide range of carboxylic acids including those bioactive ones could couple readily with various terminal alkynes, thus providing a relative general method for preparing internal alkynes.

Diorganyl tellurides as substrates in Sonogashira coupling reactions under mild conditions

A new method of Sonogashira coupling reactions between diorganyl tellurides and terminal alkynes is reported. The coupling reactions are performed using Pd(dppf)Cl2 as a catalyst, CuI as a co-catalyst in the presence of K2CO3 in DMSO. The reactions are carried out at room temperature and completed within 2 h when phenyl acetylene is used as a terminal alkyne. For aliphatic terminal alkynes, such as 1-hexyne and 1-octyne, an elevated temperature and longer reaction time are needed for the completion of the reactions. This process results in good yields of Sonogashira coupling products which is applicable for diaryl, divinyl and dialkynyl tellurides but not applicable for dialkyl tellurides.

A palladium catalyzed aryl alkyne preparation method

The invention discloses a palladium catalyzed aryl alkyne of the preparation method, comprises the following steps: in the catalyst, under the action of the ligand and alkali, substituted with aryl sulfonyl chloride alkynoic occurs in the organic solvent escapes suosuo the coupling reaction, after the reaction is finished after treatment to obtain the aryl alkyne. Used in the preparation method of the cheap raw material, the reaction and simple post treatment operation, at the same time, the reaction less side reaction, high yield of the product.