作者:Kiyoharu Hayano、Takao Shinjo、Katsura Mochizuki
DOI:10.3987/com-95-7349
日期:——
The epoxidation of(2E, 9E)-6,7-epoxy-3,7,11,11-tetramethylcycloundeca-2,9-diene (1) with m-CPBA gave a new TC and known CT diepoxides, (9E)-(2R*, 3R*, 6R*, 7R*)-2,3;6,7-diepoxy-3,7,11,11-tetramethylcycloundec-9-ene (3) and (9E)-(2S*, 3S*, 6R*, 7R*)-2,3;6,7-diepoxy-3,7,11,11-tetramethylcycloundec-9-ene (2), respectively, in the ratio of 2:3=91.5:8.5. The conformation of 3 was determined by X-ray crystallography (C15H24O2: monoclinic space group P2(1)/n with a=13.735(4) Angstrom, b=15.910(3) Angstrom, c=6.553(2) Angstrom, beta=100.90(2)degrees, Z=4).