Microwave-assisted synthesis of organometallic rhenium (I) pentylcarbonato complexes: New synthon for carboxylato, sulfonato and chlorido complexes

Winstead, Angela; Alabrash, Khayra; Powell, Brent V.; Parnell, Sabreea J.; Hinton, Tiara V.; Odebode, Tijesunimi; Peng, Jiangnan; Krause, Jeanette A.; Zavalij, Peter Y.; Mandal, Santosh K.

doi:10.1016/j.jorganchem.2021.121718

Cited by 5 publications

(1 citation statement)

References 18 publications

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“…Finally, few other scattered examples of the application of MW irradiation to Re chemistry were reported: (i) the synthesis of dirhenium paddlewheel complexes [102]; (ii) the reaction between [ReBr(CO) 5 ] and tripodal nitrogen ligands derived from tris(pyrazolyl)methane [103] or 3-(2-pyridyl)pyrazole [104]; and (iii) the synthesis of three tricarbonyl rhenium(I) pentylcarbonato complexes of the general formula fac-[Re(CO) 3 (α-diimine)(pentyl)] and their conversion to carboxylato, sulfonato, and chlorido complexes [105]. Furthermore, [ReCl 3 O(PPh 3 ) 2 ] was synthesized (together with analogous complexes of Ru(III) and Rh(III)) via MW reflux in EtOH/water in 30 min with a 94% yield instead of 5 h with conventional reflux.…”

Section: Technetium-99m and Rheniummentioning

confidence: 99%

Microwave-Assisted Synthesis: Can Transition Metal Complexes Take Advantage of This “Green” Method?

Gabano

Ravera

2022

Molecules

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Microwave-assisted synthesis is considered environmental-friendly and, therefore, in agreement with the principles of green chemistry. This form of energy has been employed extensively and successfully in organic synthesis also in the case of metal-catalyzed synthetic procedures. However, it has been less widely exploited in the synthesis of metal complexes. As microwave irradiation has been proving its utility as both a time-saving procedure and an alternative way to carry on tricky transformations, its use can help inorganic chemists, too. This review focuses on the use of microwave irradiation in the preparation of transition metal complexes and organometallic compounds and also includes new, unpublished results. The syntheses of the compounds are described following the group of the periodic table to which the contained metal belongs. A general overview of the results from over 150 papers points out that microwaves can be a useful synthetic tool for inorganic chemists, reducing dramatically the reaction times with respect to traditional heating. This is often accompanied by a more limited risk of decomposition of reagents or products by an increase in yield, purity, and (sometimes) selectivity. In any case, thermal control is operative, whereas nonthermal or specific microwave effects seem to be absent.

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