The formation of organotin carboxylates in bis(tributyltin) oxide - treated Pinus sylvestris sapwood

IRG/WP 3618

S J Blunden, R Hill

Tributyltin compounds have been successfully used for many years as wood preservatives, although their chemical nature in timber have not been fully elucidated. This study by 119Sn and 13C NMR spectroscopy has shown that, on impregnation into Pinus sylvestris sapwood, bis(tributyltin) oxide, (Bu3Sn)2O, is rapidly converted to tributyltin carboxylates, Bu3SnOCO┬ĚR, via reaction with components of the wood resin. It is further suggested that the formation of these species is a prerequisite for the known disproportionation reaction which occurs in (Bu3Sn)2O - treated timber.


Keywords: ABIETIC ACID; CARBOXYLIC ACIDS; DIBUTYLTIN OXIDE; NMR; ORGANOTIN CARBOXYLATES; PINUS SYLVESTRIS; TBTO; WOOD RESIN

Conference: 90-05-13/18 Rotorua, New Zealand


Download document (420 kb)
free for the members of IRG.

Order document from secretariat