Ozonolysis of 1,2,3,4,5,8‐hexahydronaphthalene

Consider [1,2,3,4,5,8‐hexahydronaphthalene](https://pubchem.ncbi.nlm.nih.gov/compound/1_2_3_4_5_8-Hexahydronaphthalene#section=2D-Structure):


[![1,2,3,4,5,8‐hexahydronaphthalene](https://i.stack.imgur.com/74vZO.png)](https://i.stack.imgur.com/74vZO.png)


If one equivalent of ozone is added, then which double bond will undergo ozonolysis?


If it attacks the more electron rich one, then unstable 10 membered ring will form, and if it attacks the other,less sterically hindered one, stable 6 membered ring having 2 branched aldehydes will form.


What will actually happen? What factors decide this?


