M.C. ETTER ET AL: 'Solid-state nucleophilic aromatic substitution reaction of a carboxylic acid cocrystal', TETRAHEDRON LETTERS, vol. 30, no. 28, 1 January 1989 (1989-01-01), pages 3617 - 3620, XP055011861, ISSN: 0040-4039, DOI: 10.1016/S0040-4039(01)80463-9