... Downloading zip file containing 3 articles... JavaScript is disabled on your browser. Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 31, Issue 47, 1990, Pages 6869–6872. Cover image Cover image. N-hydroxy-2-pyridinethione: A mild and convenient source of hydroxyl radicals. ... SZ Zard; For the preparation of 1 from its commercially available 40% aqueous solution of its sodium salt, see: Tetrahedron, 43 (1987), p. 2733 ...