Chemoselective 1,3-Dipolar Cycloaddition Reactions of Rhodium(II)-Generated Isomünchnones with 1,4-Quinones: Synthesis of Novel Azapolycycles - Nair, Vijay; Santhi, V; Sheela, K C; Radhakrishnan, K V; Rath, Nigam P (Synthesis, 2003)