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Synthesis and Co-ordination Chemistry of the Macrocycle 1,4,7-Triisopropyl-1,4,7-triazacyclononane

DOI: 10.1039/DT9930000083

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Journal of the Chemical Society, Dalton Transactions p. 83 - 90 (1993)

Update date:2022-08-05

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Authors:

Haselhorst, GabrieleHaselhorst, Gabriele

Stoetzel, StefanStoetzel, Stefan

Strassburger, AnjaStrassburger, Anja

Walz, WolfgangWalz, Wolfgang

Wieghardt, KarlWieghardt, Karl

Nuber, BernhardNuber, Bernhard

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Article abstract of DOI:10.1039/DT9930000083

The bulky tridentate macrocycle 1,4,7-triisopropyl-1,4,7-triazacyclononane (L) has been prepared and its co-ordination chemistry investigated.Reaction of L with in refuxing mesitylene affords air-stable (M = Cr 1, Mo 2 or W 3) in excellent yields.Oxidation of complexes 1 and 2 with SOCl2 in CCl4 yields (M = Cr 4 or Mo 5) whereas (M = Cr 6 or Mo 7) were obtained by using bromine as oxidant in CHCl3.Exhaustive oxidative decarbonylation of 2 in semi-concentrated nitric acid affords colourless *3H2O 8 which reacts with phenyl isocyanate in dry toluene yielding *(PhNH)2CO 9.In dry MeCN the ligand reacts with VCl3 to give 10 which undergoes ligand substitution in water in the presence of NaSCN to give 11.When this reaction was carried out in the presence of oxygen 12 was obtained.The molecular structures of 2, 8 and 9 have been established by single-crystal X-ray analysis.

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Product name:1H-1,4,7-Triazonine, octahydro-1,4,7-tris(1-methylethyl)-

Cas No:110076-36-3

110076-36-3

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