Vijay Nair, G; Rajeev S Menon; Ani Deepthi; Rema Devi, B; Biju, A T
(Pergamon-Elsevier Science, 2005)
Isocyanides, dimethyl acetylenedicarboxylate, and cyclobutene-1,2-diones react in one-pot to afford novel spirocyclic compounds with double insertion of the isocyanide.