Synthesis of 4-oxo- and 4-anti-formyl-8,10,12,13-tetraoxapentacyclo-[5.5.1.02,6.03,11.05,9]tridecanes
作者:Hsien-Jen Wu、Jyh-Haur Chern
DOI:10.1016/s0040-4020(97)10228-9
日期:1997.12
The synthesis of 4-oxo- and 4-anti-formyl-8,10,12,13-tetraoxapentacyclo[5.5.1.02,6.03,11.05,9]tridecanes has been accomplished. Ozonolysis of compounds 10a,b and 12a-c in dichloromethane at −78 °C followed by reduction with dimethyl sulfide gave the title compounds, 4-oxo-tetraoxa-cages 11a,b and 14a-c, in moderate yields. Ozonolysis of the endo-syn isomers 15a,b and 18a,b under the same reaction conditions
已经完成了4-氧代和4-反甲酰基-8,10,12,13-四氧杂五环[5.5.1.0 2,6 .0 3,11 .0 5,9 ]十三烷的合成。在-78°C下于二氯甲烷中将化合物10a,b和12a-c臭氧分解,然后用二甲基硫醚还原,以中等收率得到标题化合物4-氧代-四氧杂笼11a,b和14a-c。在相同的反应条件下,内合成异构体15a,b和18a,b的臭氧分解分别得到4-抗甲酰基四氧杂笼17a,b和20a,b。