150989-48-3Relevant academic research and scientific papers
Intramolecular 1,4-Dipolar Cycloaddition of Cross-Conjugated Heterocyclic Betaines. A New Route to Hexahydrojulolidines and Related Peri-Fused Ring Systems
Potts, Kevin T.,Rochanapruk, Thevarak,Coats, Steven J.,Hadjiarapoglou, Lazaros,Padwa, Albert
, p. 5040 - 5042 (1993)
Alkenyl-substituted bicyclic anhydro-4-hydroxy-2-oxo-1,3-thiazinium hydroxides prepared from 3,3-disubstituted thiolactams and 1,3-bielectrophiles formed thermally-induced intramolecular cycloadducts which underwent loss of carbonyl sulfide, followed by a 1,5-hydrogen shift, to hexahydrojulolidines and related ring systems.
Intramolecular 1,4-Dipolar Cycloadditions of Cross-Conjugated Heteroaromatic Betaines. Synthesis of Hexahydrojulolidines and Related Peri- and Ortho-Fused Ring Systems
Potts, Kevin T.,Rochanapruk, Thevarak
, p. 3795 - 3805 (1995)
3-Alkenyl 2-lactams react with (chlorocarbonyl)phenylketene to give nonisolable anhydro-4-hydroxy-2-oxo-1,3-oxazinium hydroxides which undergo regio- and stereospecific 1,4-dipolar cycloaddition in moderate yields to produce cycloadducts containing a carb
