Microwave-assisted synthesis of (η6-arene)tricarbonylchromium complexes

Synthesis and structure of tricarbonyl(η6-arene)chromium complexes of phenyl and benzyl D-glycopyranosides

“…For method (b) high-boiling-point solvents, such as di- n -butylether, decalin or dioxane, can be used. The addition of THF to these solvents was shown to prevent the excessive sublimation of Cr(CO) 6 during the formation of the arene–chromium complexes [ 17 ]. Therefore, we used method (b) for the preparation of tricarbonyl(η 6 -arene)chromium complexes of glycosides as follows.…”

Microwave-Assisted Synthesis of Coordination and Organometallic Compounds

“…Also, mixed carbonyl-arene complexes are known; thus, the microwaveassisted synthesis of (η 6 -arene)tricarbonylchromium complexes from hexacarbonylchromium and arenes gave high yields of (η 6 -arene)chromium tricarbonyl complexes (Lee et al, 2006). In case of noble metals, by using a gas-loading accessory, microwave-assisted synthesis of Ru 3 (CO) 12 , Ru 3 (CO) 9 (PPh 3 ) 3 , HRu 3 (CO) 9 (C≡CPh) and H 4 Ru 4 (CO) 12 was performed (Leadbeater et al, 2008).…”

“…Microwave heating was employed to promote arene displacement in reactions of (Albrecht et al, 2009). Also, the MWAS of (η 6 -arene)tricarbonylchromium complexes from hexacarbonylchromium with arenes gave high yields of products 32 (reaction 12) (Lee et al, 2006). …”

Preparation of Arene Chromium Tricarbonyl Complexes Using Continuous-Flow Processing: (η6-C6H5CH3)Cr(CO)3 as an Example

“…Attempts to prepare the corresponding mesitylene complex were not successful. In a sealed tube, (arene)Cr(CO) 3 complexes have been prepared by heating Cr(CO) 6 and the arene at 160°C for 1 h using either tetrahydrofuran (THF) alone or THF and dibutyl ether as co-solvent [11]. However, this procedure presents significant safety concerns.…”