Wood protection properties of quaternary ammonium arylspiroborate esters derived from naphthalene 2,3-Diol, 2,2 '-Biphenol and 3-Hydroxy-2-naphthoic acid

Carr, Jenny M., Duggan, Peter James, Humphrey, David G., Platts, James Alexis ORCID: https://orcid.org/0000-0002-1008-6595 and Tyndall, Edward M. 2010. Wood protection properties of quaternary ammonium arylspiroborate esters derived from naphthalene 2,3-Diol, 2,2 '-Biphenol and 3-Hydroxy-2-naphthoic acid. Australian Journal of Chemistry 63 (10) , pp. 1423-1429. 10.1071/CH10132

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Abstract

In continuation of a program aimed at developing a boron-based, high performing and environmentally benign wood preservative suitable for outdoor use, three lipophilic tetra-n-butylammonium spiroborates, tetra-n-butylammonium bis[naphthalene-2,3-diolato(2-)-O,O′]borate 4, tetra-n-butylammonium bis[2,2′-biphenolato(2-)-O,O′]borate 5 and tetra-n-butylammonium bis[3-hydroxy-2-naphthoato(2-)-O,O′]borate 6 were prepared and tested. The higher molecular weight and lipophilicity of these borates compared with related borates previously examined correlates, in the case of 5 and 6, with significantly enhanced leach resistance while termiticidal activity has been maintained. The racemic spiroborate derived from 2,2′-biphenol 5, in particular, appears to be close to an optimum balance between ease of synthesis, solubility, hydrolytic stability and termiticidal activity.

Item Type:	Article
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	CSIRO Publishing
ISSN:	0004-9425
Last Modified:	18 Oct 2022 13:09
URI:	https://orca.cardiff.ac.uk/id/eprint/12552

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