New Journal of Chemistry p. 17574 - 17586 (2018)
Update date:2022-08-11
Topics:
Biancalana, Lorenzo
Fulignati, Sara
Antonetti, Claudia
Zacchini, Stefano
Provinciali, Giacomo
Pampaloni, Guido
Raspolli Galletti, Anna Maria
Marchetti, Fabio
The ruthenium compounds [(η6-p-cymene)RuCl{κ2N-(HCNR)2}]NO3 (R = 4-C6H4Me, [1]NO3; 4-C6H4OH, [2]NO3; C6H11═Cy, [3]NO3; 4-C6H10OH, [4]NO3; tBu, [5]NO3) were prepared in high yields from [(p-cymene)RuCl2]2, AgNO3 and the appropriate α-diimine. Compounds [2]PF6 and [4]PF6 were obtained by a straightforward reaction of [(η6-p-cymene)RuCl(MeCN)0.66]PF6, [6]PF6, with α-diimine, whereas [4]BPh4 was obtained by metathesis between [4]NO3 and NaBPh4. All the ruthenium products were characterized by analytical methods, IR, NMR and UV-Vis spectroscopy; in addition, the structure of [1]NO3 was ascertained by an X-ray diffraction study. Compounds [1-4]NO3, [4]PF6 and [4]BPh4 were investigated as catalytic precursors in the transfer hydrogenation reaction of ethyl levulinate to γ-valerolactone in isopropanol solution under microwave irradiation. [4]BPh4 was revealed to be the best catalytic precursor, affording γ-valerolactone in 62% yield under optimized experimental conditions.
View Morehangzhou verychem science and technology co.ltd
website:http://www.verypharm.com
Contact:+86-571-88162785; 88162786
Address:F1502, 753 Shenhua road, Hangzhou, China
website:http://www.chinaskyrun.com
Contact:0086-576-84610586
Address:Chemical Development Zone
Shanghai Sinofluoro Scientific Co., Ltd
Contact:+86-21-64279360
Address:Room 1006,Building 3,#58 East Xinjian Road, Shanghai ,201100,China,
Contact:+86-511-88790000
Address:338 North Yushan Rd, Zhenjiang, Jiangsu 212016
Hangzhou Reb Technology Co., Ltd.
Contact:571-81902596
Address:Room 502,Buil.5,No.1 Xi Yuan Rd. The West Lake Science&Technology Park, Hangzhou,Zhejiang,China.
Doi:10.1016/j.cattod.2010.04.034
(2010)Doi:10.1016/j.chembiol.2020.07.001
(2020)Doi:10.1016/j.tetlet.2018.03.071
(2018)Doi:10.1039/d0cy01679a
(2020)Doi:10.1248/cpb.38.2277
(1990)Doi:10.1007/BF00477032
()