Search for dioxocarbenes in photochemical reactions of 5-diazo-4,6-dioxo-1, 3-dioxanes, associated diazirines, and S-ylides

Article abstract of DOI:10.1016/j.tetlet.2004.11.102

On direct photolysis of 2,2-dialkyl-5-diazo-4,6-dioxo-1,3-dioxanes in the presence of pyridine, methanol or dimethyl sulfide as carbene traps, the yield of 'carbene' products does not exceed 27-28%. At the same time photochemical transformations of the re