14939-05-0Relevant articles and documents
Palladium-catalyzed carbonylative synthesis of alkynones from aryl iodides and phenylpropiolic acid employing formic acid as the CO source
Li, Chong-Liang,Zhang, Wan-Quan,Qi, Xinxin,Peng, Jin-Bao,Wu, Xiao-Feng
, p. 9 - 11 (2017)
A palladium-catalyzed procedure for the decarboxylative-carbonylation of phenylpropiolic acid with iodobenzenes to the corresponding alkynones with formic acid as carbon monoxide source has been developed. Various alkynones were produced in moderate to good yields.
Copper-, ligand- and solvent-free synthesis of ynones by coupling acid chlorides with terminal alkynes
Palimkar, Sanjay S.,Kumar, P. Harish,Jogdand, Nivrutti R.,Daniel, Thomas,Lahoti, Rajgopal J.,Srinivasan, Kumar V.
, p. 5527 - 5530 (2006)
A general and efficient copper-, ligand- and solvent-free synthesis of ynones by coupling of a wide range of acid chlorides with terminal alkynes catalyzed by palladium(II) acetate at room temperature is reported.
A facile synthesis of copper nanoparticles supported on an ordered mesoporous polymer as an efficient and stable catalyst for solvent-free sonogashira coupling Reactions
Wang, Kaixuan,Yang, Liping,Zhao, Weiliang,Cao, Linqing,Sun, Zhenliang,Zhang, Fang
, p. 1949 - 1957 (2017)
A novel mesoporous phenol-formaldehyde resin-supported copper nanoparticles catalyst was prepared using a two-step protocol involving the melt infiltration of copper nitrate hydrates and the subsequent template pyrolysis-induced in situ reduction of Cu(ii
Polymer-supported selenol esters as useful acylating reagents. Application to α, β-acetylenic ketones synthesis
Qian,Shao,Huang
, p. 1571 - 1572 (2001)
Three novel polystyrene supported selenol esters were synthesized and used as acyl transfer agents to prepare α, β-acetylenic ketones by reaction with alkynylcoppers.
Catalytic activity of palladium acyclic diaminocarbene complexes in the synthesis of 1,3-diarylpropynones via Sonogashira reaction: Cross- versus homo-coupling
Ryabukhin, Dmitry S.,Sorokoumov, Viktor N.,Savicheva, Elizaveta A.,Boyarskiy, Vadim P.,Balova, Irina A.,Vasilyev, Aleksander V.
, p. 2369 - 2372 (2013)
Sonogashira cross-coupling of aryl acetylenes and aroyl chlorides catalyzed by palladium(II) acyclic diaminocarbene complexes was investigated. Reactions were carried out with 0.04 mol % of the catalysts, all of which demonstrated high stability and activ
Organoborane-catalyzed selective 1,2-reduction of alkynones with hydride transfer: Synthesis of benzyl alkynes
Zhai, Lele,Yang, Zhigang,Man, Qinghong,Yang, Mingyu,Ren, Yangqing,Wang, Lei,Li, Huilin,She, Xuegong
, (2022/01/28)
Benzyl alkynes are important organic building blocks in organic synthesis. We report herein a B(C6F5)3-catalyzed site-selective 1,2-reduction of readily available alkynones to access benzyl alkyne derivatives. Under the de
Straightforward Stereoselective Synthesis of Seven-Membered Oxa-Bridged Rings through in Situ Generated Cycloheptenol Derivatives
Wang, Mengdan,Yin, Liqiang,Cheng, Lu,Yang, Yajie,Li, Yanzhong
, p. 12956 - 12963 (2021/09/13)
An iodine-mediated stereoselective synthesis of seven-membered oxa-bridged rings via in situ generated cycloheptenols was reported. This process was realized through the combination of C-C σ-bond cleavage and C-O bond-forming reactions in a one-pot fashion from simple and easily accessible raw materials. The formation of carbon radicals initiated by I2 was the key to the reaction.
Synthesis of Isoselenazoles and Isothiazoles from Demethoxylative Cycloaddition of Alkynyl Oxime Ethers
Zhang, Zhu-Zhu,Chen, Rong,Zhang, Xiao-Hong,Zhang, Xing-Guo
, p. 632 - 642 (2020/12/22)
A general method for the synthesis of isoselenazoles and isothiazoles has been developed by the base-promoted demethoxylative cycloaddition of alkynyl oxime ethers using the cheap and inactive Se powder and Na2S as selenium and sulfur sources. This transformation features the direct construction of N-, Se-, and S-containing heterocycles through the formation of N-Se/S and C-Se/S bonds in one-pot reactions with excellent functional group tolerance.