Alkylidenecarbenes, alkylidenecarbenoids, and competing species: Which is responsible for vinylic nucleophilic substitution,[1+ 2] cycloadditions, 1, 5-CH insertions …

R Knorr - Chemical reviews, 2004 - ACS Publications
The Fritsch-Buttenberg-Wiechell (FBW)“rearrangement” was discovered1 as the formation of
diarylacetylenes (6) from 2, 2-diaryl-1-halogenoalkenes (1) under the action of sodium …

Synthesis and aromaticity of metallacyclopropene complexes

B Fu, W Bai, Y Li, W Jiang - Chemical Communications, 2024 - pubs.rsc.org
Metallacycloprop-1-ene and metallacycloprop-2-ene complexes are the smallest
unsaturated metallacycles, and have attracted continuing attention for their importance in …

A general bifunctional catalyst for the anti-Markovnikov hydration of terminal alkynes to aldehydes gives enzyme-like rate and selectivity enhancements

DB Grotjahn, DA Lev - Journal of the American Chemical Society, 2004 - ACS Publications
A new, bifunctional catalyst for anti-Markovnikov hydration of terminal alkynes to aldehydes
(6) allows practical room-temperature hydration of alkyl-substituted alkynes. Other …

Ruthenium-Catalyzed Hydration of 1-Alkynes to Give Aldehydes:  Insight into anti-Markovnikov Regiochemistry

M Tokunaga, T Suzuki, N Koga… - Journal of the …, 2001 - ACS Publications
The mechanism of the selective conversion of 1-alkynes to aldehydes by hydration was
investigated by isolating organic and organometallic byproducts, deuterium-labeling …

Ruthenium and osmium vinylidene complexes and some related compounds

MC Puerta, P Valerga - Coordination Chemistry Reviews, 1999 - Elsevier
A review of the large number of studies completed during the current decade on the
chemistry of ruthenium and osmium vinylidene complexes is presented. Interest in these …

Convenient Synthesis of [(η5-C5Me5)Ru(NCMe)3]PF6 and the Phosphine Derivatives [(η5-C5Me5)Ru(PR3)2(NCMe)]PF6

B Steinmetz, WA Schenk - Organometallics, 1999 - ACS Publications
A convenient, high-yield (91%) synthesis of [(η5-C5Me5) Ru (NCMe) 3] PF6 (4− PF6) by zinc
reduction of [(η5-C5Me5) RuCl2] n (1) in acetonitrile solution is described. Two acetonitrile …

New ruthenium vinylidene complexes as intermediates for the access to. sigma.-acetylide and unsymmetrical trans-diynyl, alkynyl metal complexes. Crystal structures …

D Touchard, P Haquette, N Pirio, L Toupet… - …, 1993 - ACS Publications
Metal-acetylide complexes attract interest as precur-sors of molecules containing a linear
array and delocalizable systems, 1'2 or polymeric materials, 2 in the search of interaction …

Mononuclear Fe (I) and Fe (II) acetylene adducts and their reductive protonation to terminal Fe (IV) and Fe (V) carbynes

C Citek, PH Oyala, JC Peters - Journal of the American Chemical …, 2019 - ACS Publications
The activity of nitrogenase enzymes, which catalyze the conversion of atmospheric
dinitrogen to bioavailable ammonia, is most commonly assayed by the reduction of …

Metallacumulenes: from vinylidenes to metal polycarbides

JP Selegue - Coordination chemistry reviews, 2004 - Elsevier
Metallacumulenes and carbide complexes exhibit diverse structures and modes of reactivity.
This review presents an overview of work in the author's research group on vinylidene …

Alternative Mechanisms of the Alkyne to Vinylidene Isomerization Promoted by Half-Sandwich Ruthenium Complexes. X-ray Crystal Structures of [Cp*RuCCHCOOMe(dippe)][BPh4] and [Cp*RuH(C⋮ …

I de los Ríos, MJ Tenorio, MC Puerta… - Journal of the American …, 1997 - ACS Publications
The complex [Cp* RuCl (dippe)] reacts with 1-alkynes in MeOH in the presence of NaBPh4,
yielding the metastable hydrido− alkynyl derivatives [Cp* Ru (H)(C⋮ CR)(dippe)][BPh4](R …