Synthesis of arylboronates by the palladium catalysed cross-coupling reaction in ionic liquids

2003 ◽  
Vol 1 (19) ◽  
pp. 3274 ◽  
Author(s):  
Andrzej Wolan ◽  
Marek Zaidlewicz
2010 ◽  
Vol 51 (52) ◽  
pp. 6867-6870 ◽  
Author(s):  
Juan C. Cárdenas ◽  
Luca Fadini ◽  
Cesar A. Sierra

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 652 ◽  
Author(s):  
Monika Olesiejuk ◽  
Agnieszka Kudelko ◽  
Marcin Swiatkowski ◽  
Rafal Kruszynski

New derivatives of 4-alkyl-3,5-diaryl-4H-1,2,4-triazole were synthesized utilizing the Suzuki cross-coupling reaction. The presented methodology comprises of the preparation of bromine-containing 4-alkyl-4H-1,2,4-triazoles and their coupling with different commercially available boronic acids in the presence of ionic liquids or in conventional solvents. The obtained compounds were tested for their luminescence properties.


2018 ◽  
Vol 2018 (11) ◽  
pp. 1284-1306 ◽  
Author(s):  
Jianxiao Li ◽  
Shaorong Yang ◽  
Wanqing Wu ◽  
Huanfeng Jiang

2003 ◽  
Vol 75 (9) ◽  
pp. 1349-1355 ◽  
Author(s):  
M. Zaidlewicz ◽  
W. Sokól ◽  
A. Wolan ◽  
J. Cytarska ◽  
A. Tafelska-Kaczmarek ◽  
...  

Enolization–aldolization of conjugated ketones, enantioselective synthesis of benzofuryl beta-amino alcohols, and synthesis of p-dihydroxyborylphenylalanine (BPA) and its analogs are described. Aldolization of benzaldehyde with lithium dienolates derived from unhindered conjugated cyclohexenones favored anti- selectivity, whereas syn selectivity was favored for hindered cyclohexenones. Anti-aldols were preferentially formed from dienolborinates derived from conjugated cyklohexenones, however,competing aldolization at the 2-position was observed for hindered ketones. Benzofuryl beta-amino alcohols were prepared using as a key step the enantioselective reduction of the corresponding alpha-bromoacetylbenzofurans with (–)-B- -chlorodiisopinocampheylborane. Ionic liquids were used as solvents for the synthesis of BPA by the Suzuki cross-coupling reaction. The reaction time is short, and a solution of the catalyst in the ionic liquid can be recycled.


2014 ◽  
Vol 34 (6) ◽  
pp. 1148
Author(s):  
Shaorong Yang ◽  
Changwei Ling ◽  
Jianye Ma ◽  
Lei Zhang ◽  
Jianxiao Li ◽  
...  

2009 ◽  
Vol 81 (11) ◽  
pp. 2035-2043 ◽  
Author(s):  
Cinzia Chiappe ◽  
Bernardo Melai ◽  
Angelo Sanzone ◽  
Giulia Valentini

In this paper, we report on the synthesis and application of monosubstituted diazabicyclo[2.2.2]octane (dabco) cations associated with a basic anion, dicyanamide. Key properties of these salts—phase transitions, density, and conductivity—were measured and compared to those of other common ionic liquids (ILs). Moreover, solvatochromic dyes were used to assess their solvation properties. The Heck cross-coupling reaction was evaluated in dabco-based ILs and compared with the behavior in common unfunctionalized ILs, evidencing good catalyst stability and a high recyclability in these basic ILs.


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