Indane 3a,4-oxide: formation by isomerisation of indane 3a,7a-oxide and confirmation of structure by an alternative synthesis
Abstract
Indane 3a,7a-oxide (1) is isomerised on heating to indane 3a,4-oxide (2). A number of attempts to prepare the latter from 3a,6-dihydroindanes were unsuccessful, but a preparation from 10-oxatricyclo[4.3.1.01,6]dec-3-ene provided confirmation of the assigned structure (2).