抄録
Paterno-Buchi reaction of furan and benzaldehyde was studied. Four 2 : 1 adducts were isolated and their structures were solved by chemical conversion, spectral resolution, and X-ray analysis. Two of them (B and C) has 4, 6, 8-trioxatricyclo [5.2.0.02, 5] nonane skelton and the other (D and E) had 3, 6, 8-trioxatricyclo [5.2.0.02, 5] nonane skelton. The former gave dimethoxy derivatives (F and G) and the latter gave mono methoxy one (H and J) by the treatment with acetic acid in methanol. Since C was presumed to be a novel sym-4, 6, 8-trioxatricyclo [5.2.0.02, 5] nonane skelton, it was solved by X-ray analysis.