Hypercoordinated organotin triflates

Abstract

Recent advances in the chemistry of organotin triflates and related organotin cations are reviewed. Applications in synthesis and catalysis are briefly discussed.

Di-n-butyltin oxide as a chemical carbon dioxide capturer

“…A polyhedron coordination view of 1, displaying the geometrical arrangement of the distorted trigonal bipyramidal tin atoms. 33 (ppm) are the principal tensor components of the chemical shielding anisotropy, sorted as follows jd 33 À d iso j > jd 11 À d iso j > jd 22 À d iso j. trifluoromethanesulfonato compounds have been structurally elucidated by X-ray diffraction, revealing such compounds to be crystallisation friendly [27]. In the presence of trifluoromethanesulfonic acid, the starting white suspension of PRE-1 gets progressively dissolved, leading finally to a completely clear solution.…”

A novel two-dimensional organostannoxane coordination network promoted by phenazine: Synthesis, characterization and X-ray structure of

“…Metal coordinated trifluoromethanesulfonate ligands are known to adopt a large diversity of bonding modes, ranging from the ionic, to mono-, bi-or tridentate, terminal or bridging [41]. Numerous examples of trifluoromethanesulfonate derivatives have been reported previously in organotin(IV) chemistry [42,43], displaying in particular excellent Lewis-acid catalytic properties for organic reactions, such as Mukaiyama aldol reaction [44], Robinson annulation [45], acetylation of alcohols [46], and transesterification of dimethyl carbonate with phenol [47]. Lately, we isolated and described the crystallographic structure of the two-dimensional hydroxo di-n-butylstannane derivative catena-…”

{[(PhCH2Sn)12(μ3-O)14(μ-OH)6](F3CSO3)2}: A New Dodecanuclear Organostannoxane

“…Encouraged by previous NMR 119 Sn{ 1 H} data which showed the in situ formation of additional intermediates, we have continued our investigations of this reaction, in a quest for new benzyltin(IV) triflate species. We describe herein the isolation as well as the solution and solid-state structural characterization of a novel polyhydroxyorganotin(IV) cluster, {[(PhCH 2 Sn) 12 (µ 3 -O) 14 (µ-OH) 6 ](F 3 CSO 3 ) 2 } (2) which is a new example of the amazing football cage Sn 12 skeleton.…”

“…In 2005, J. Beckmann reviewed the state of the art in this domain [1]. In general, organotin triflates are obtained by reaction of organotin oxides with F 3 CSO 3 H (TfOH) [2], or alternatively from organotin chlorides (R (4−x) SnCl x ) with AgO 3 SCF 3 [3].…”