Reactivity of ditert-butyldimethoxystannane with carbon dioxide and methanol: X-ray structure of the resulting complex

Synthesis of Linear and Cyclic Carbonates

“…The experimental data obtained suggest that once the monomeric species n -Bu 2 Sn(glycerol) was formed, it could either incorporate CO 2 or oligomerize with deactivation. Once formed, the carboxylated species was able to eliminate glycerol carbonate, affording a Sn -compound characterized by Sn -O -Sn bonds similar to that reported by Ballivet -Tkatchenko [80,88] , when the same catalyst was used in the carboxylation of methanol.…”

“…Besides thermodynamics, the low conversion to dialkyl carbonates may stem from the poisoning of the catalyst by water. The recycling of catalysts has also been demonstrated [62,80,88] , and this may offer additional technological solutions, as evidenced by very recent patents fi led by the Asahi Kasei company [89 -92] .…”

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

“…The yield in 1 could be optimised up to 80% (50% under with reflux conditions). IR and 119 Sn{ 1 H} NMR data achieved on the methanol wash fractions evidenced the exclusive presence of 1,3-dimethoxy-1,1,3,3-tetra-n-butyldistannoxane, {[n- [11] and the decakis(diorganotin) oxocluster, (n-Bu 2 SnO) 6 [(n-Bu 2 SnOCH 3 ) 2 (CO 3 )] 2 (compound 1) (b) [12]. A formal partition of the molecular connectivity pattern of 1 into di-n-butyltin oxide moieties is given with the curved dotted lines.…”

“…1). In the tert-butyl series, a carbonato trinuclear oxocluster arrangement, [OC(OSntert-Bu 2 ) 2 O$tert-Bu 2 Sn(OH) 2 ], was revealed [12], while in the case of the n-butyl analogue a novel decakis(diorganotin(IV)) oxocluster, (n-Bu 2 SnO) 6 [(n-Bu 2 SnOCH 3 ) 2 (CO 3 )] 2 (1), was evidenced [13].…”

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

“…On the basis of such a pattern which differs from 3 (d = À137.2, À143.9 ppm, Fig. 1b), and from examples described previously in the literature [70,71], we assign these signals to a trinuclear species with two different tin environments. This compound observed in in situ conditions constitutes indubitably a key-intermediate for the synthesis of 2 1 f½n-Bu 2 ðl-OHÞSnOSn ðl-g 2 -O 3 SCF 3 Þn-Bu 2 2 ½n-Bu 2 ðl-OHÞSnOSn ðg 1 -O 3 SCF 3 Þn-Bu 2 2 g (3) from 1 and 2.…”