144493-14-1Relevant articles and documents
Copper-free Sonogashira reaction using gold nanoparticles supported on Ce2O3, Nb2O5 and SiO2 under microwave irradiation
De Souza, Rodrigo O. M. A.,Bittar, Mariana S.,Mendes, Laiza V. P.,Da Silva, Caria Michele F.,Da Silva, Victor Teixeira,Antunes
, p. 1777 - 1780 (2008)
In the present communication we wish to report a copper-free Sonogashira reaction catalyzed by gold-supported catalysts under microwave irradiation. Aryl and alkyl acetylenes were used and good yields were obtained with short reaction times when DMF was u
Efficient suzuki-miyaura coupling reactions between lithium alkynyltrimethylborates and aryl chlorides
Torres, Gloria Hernandez,Choppin, Sabine,Colobert, Francoise
, p. 1450 - 1454 (2006)
The Pd-catalysed alkynylation of alkynylboronic esters (generated in situ) with various aryl chlorides in the presence of Pd2(dba)3, the sterically hindered dihydroimidazolium salt 4 as the precatalyst and CsF is reported. Under thes
Preparation anchored Pd nanoparticles on glyoxal modified metal- organic framework for Sonogashira coupling reactions
Alinezhad, Heshmatollah,Cheraghian, Mansoureh,Ghasemi, Shahram
, (2020)
UIO-66-NH2-Gl?Pd nanocatalyst was successfully synthesized during post-synthetic modification (PSM) method and its application was investigated in the Sonogashira coupling reactions. Initially, UIO-66-NH2 was synthesized and identifi
Enhanced catalytic activity of CuI/diethoxyphosphoryl-1,10-phenanthrolines in ‘on water’ Cu-catalyzed Sonogashira reaction
Mitrofanov, Alexander Yu.,Beletskaya, Irina P.
, p. 378 - 379 (2019)
The use of CuI/diethoxyphosphoryl-1,10-phenanthrolines and ‘on water’ conditions in the Cu-catalyzed Sonogashira reaction of aryl iodides with terminal alkynes significantly increases the reaction rate as compared to that in organic solvents.
Facile synthesis of Pd nanoparticles supported on a novel Schiff base modified chitosan-kaolin: Antibacterial and catalytic activities in Sonogashira coupling reaction
Nasrollahzadeh, Mahmoud,Shafiei, Nasrin,Baran, Talat,Pakzad, Khatereh,Tahsili, Mohammad Reza,Baran, Nuray Y?lmaz,Shokouhimehr, Mohammadreza
, (2021)
The present work studies the Sonogashira coupling reaction (SCR) between aryl halides and acetylenes under aerobic conditions using the catalytic complex of Pd nanoparticles (NPs) supported on a novel Schiff base modified chitosan-kaolin (Pd NPs@CS-Kao) in ethanol solvent. The prepared catalyst was characterized by TEM, SEM, FT-IR, XRD, EDS, XPS, elemental mapping, and Raman analyses. The products were formed in high yields. At the end of the reaction, Pd NPs@CS-Kao can be filtered and reused for five consecutive cycles. The advantages of this catalytic process include simple methodology, high yields, and easy work-up. In addition, Pd NPs@CS-Kao exhibited effective antibacterial performance against E. coli gram-negative bacteria.
Stereo-defined synthesis of differentially all-carbon tetrasubstituted alkenes derived from (E)-1-bromo-2-iodoalkenes
Endo, Naoki,Iwasawa, Tetsuo
, p. 5833 - 5840 (2017)
An intuitive approach to differentially all-carbon tetrasubstituted olefins from a scaffold of (E)-1-bromo-2-iodoalkenes is described. The iodine atom of the scaffold selectively undertook CuTC-mediated cross-coupling reactions with organotin reagents, suppressing a side-reaction of β-halogen elimination. The resultant vinyl bromides were successfully subjected to various transformations into tetrasubstituted olefins bearing four different carbon-linked groups. The crystallographic analysis revealed that the configuration of the double bonds is fully retained in those two steps. Thus, the template strategy would provide a new entry for preparing stereo-defined tetrasubstituted alkenes.
Copper-catalyzed Sonogashira-type reactions under mild palladium-free conditions
Monnier, Florian,Turtaut, Francois,Duroure, Leslie,Taillefer, Marc
, p. 3203 - 3206 (2008)
(Chemical Equation Presented) We have developed an inexpensive catalytic system using a readily available copper/ligand combination for the Sonogashira-type cross-coupling of aryl iodides and phenyl- and hexyl-acetylene which affords disubstituted alkynes
Pd nanoparticles loaded on modified chitosan-Unye bentonite microcapsules: A reusable nanocatalyst for Sonogashira coupling reaction
Shafiei, Nasrin,Nasrollahzadeh, Mahmoud,Baran, Talat,Baran, Nuray Y?lmaz,Shokouhimehr, Mohammadreza
, (2021)
This work investigates the preparation of a catalytic complex of palladium nanoparticles supported on novel Schiff base modified chitosan-Unye bentonite microcapsules (Pd NPs@CS-UN). The complex has been characterized by FT-IR, EDS, XRD, TEM, HRTEM, Raman
Aqueous Sonogashira coupling of aryl halides with 1-alkynes under mild conditions: Use of surfactants in cross-coupling reactions
Roberts, Gina M.,Lu, Wenya,Woo, L. Keith
, p. 18960 - 18971 (2015)
Aqueous Sonogashira coupling between lipophilic terminal alkynes and aryl bromides or iodides gave moderate to high yields at 40°C using readily available and inexpensive surfactants (2.0 w/v% in water) such as SDS and CTAB. The catalyst precursor was 2 m
An efficient coupling of aryl iodides with terminal alkynes catalyzed by silica-supported sulfur palladium(0) complex
Cai, Ming-Zhong,Song, Cai-Sheng,Huang, Xian
, p. 1935 - 1942 (1997)
A silica-supported sulfur palladium(0) complex was prepared by the direct ligand-exchange reaction of poly-γ-mercaptopropylsiloxane with Pd(PPh3)4. It was an efficient catalyst for the coupling of aryl iodides with terminal alkynes.