... Tetrahedron Letters. Volume 24, Issue 33, 1983, Pages 3435–3438. Cover image Cover image. The addition of amines to 3-bromochromone and 6-bromofurochromone. An unexpected ring contraction of the pyrone ring. ... 3; RB Gammill, CE Day and PE Schurr, J. Med. Chem., submitted for publication. 4; The synthesis of View Record in Scopus. | Citing articles (1). is based on the synthesis of 3-bromochromones reported in: , 901 (1978). ...