... Tetrahedron Letters. Volume 43, Issue 16, 15 April 2002, Pages 2995–2998. Cover image Cover image. ... Compound B4, as an isomer of 2, was obtained via three reaction steps: (1) 3-diazonium-4-phenylthio-naphthalic anhydride A afforded isomers A2 and B2 15., , and 16. ...
[Ayyangar, N. R.; Joshi, S. V.; Lugade, A. G. Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1982 , vol. 21, p. 842 - 845]