... Solutions of 3 in common organic solvents are also unstable, but it can be stored as a solid without significant decomposition. ... (16) Irwin, WJ; Wibberley, DG In Advances in Heterocyclic Chemistry; Katritzky, AR, Boulton, AJ ... 1156 J. Org. Chem., Vol. 61, No. 3, 1996 Notes Page 3. ...
[Showalter, H. D. Hollis; Sun, Li; Sercel, Anthony D.; Winters, R. Thomas; Denny, William A.; Palmer, Brian D. Journal of Organic Chemistry, 1996 , vol. 61, # 3 p. 1155 - 1158]