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The authors thank Patrick Romanens for his help with
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Author Contribution Statement
Eva Bocekova-Gajdošíkova (PostDoc): syntheses and
crystal preparation of complexes 16–19. Bugra Epik
(intern): initial experiments of microwave synthesis of
2. Jingyu Chou (PostDoc): microwave synthesis of 2–
11. Katsuhiro Akiyama and Nobuaki Fukui (interns):
syntheses of 15–17 and attempts of haptotropic
rearrangements. Laure Guénée (crystallographer): X-Ray
structure determinations. E. P. K.: project director.
[16] C. Tortoreto, T. Achard, M. Austeri, W. Zeghida, J. Lacour,
‘Original Reactivity of α-Diazo-β-ketoesters Catalyzed by
CpRu Complexes’, Chimia 2014, 68, 243–247.
[17] M. Austeri, D. Linder, J. Lacour, ‘(Cyclopentadienyl)ruthe-
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tive Allylic Etherification of Allyl Aryl and Alkyl Carbonates’,
Adv. Synth. Catal. 2010, 352, 3339–3347.
[18] C. Tortoreto, T. Achard, L. Egger, L. Guénée, J. Lacour,
‘Synthesis of Spiro Ketals, Orthoesters, and Orthocarbon-
ates by CpRu-Catalyzed Decomposition of α-Diazo-β-
ketoesters’, Org. Lett. 2016, 18, 240–243.
[19] L. Egger, L. Guénée, T. Bürgi, J. Lacour, ‘Regioselective and
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Synthesis and Reactions of a Synthetically Useful Inter-
mediate: the Cyclopentadienyl tris(acetonitrile)ruthenium
(II) Cation’, Organometallics 1982, 1, 485–488.
[21] B. M. Trost, C. M. Older, ‘A Convenient Synthetic Route to
CpRu(CH3CN)3PF6’, Organometallics 2002, 21, 2544–2546.
[22] E. P. Kündig, F. R. Monnier, ‘Efficient Synthesis of Tris
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[23] F. Monnier, M. Taillefer, ‘From Ruthenium to Copper: A la
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