The pentaoxa[5] peristylanes. A novel oxa-cage system
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10.1016/S0040-4039(97)00375-4
Abstract
The synthesis of pentaoxa[5]peristylanes, a novel oxa-cage system, has been accomplished via ozonolysis of 7-anti-2,3-bis-endo-triacylbicyclo[2.2.1]-5-heptenes and via a direct chemical transformation of the tetraacetal tetraoxa-cages 5a-c and 6a-c. (C) 1997 Elsevier Science Ltd.