u/AsideRound8210

https://preview.redd.it/dl52eo06eqyg1.png?width=2484&format=png&auto=webp&s=7213fc1fc792060fddb892a17e25302a8399c7f1

I have looked through various text books, and the references given in the pasted passage, and can't find anything. When I draw out the reactive conformations, the cis always seems kinetically disfavoured due to the 1,3-diaxial clash.

Otherwise, my best guess is that the cis conformation is kinetically favoured due to less clash of the enolate protons I have explicity drawn, and other substituents of the decalin (pasted below)

https://preview.redd.it/ln0p11e9iqyg1.png?width=1331&format=png&auto=webp&s=62473ff3165ef2ed42464cf01267d4de9c37a8e8

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u/AsideRound8210 — 11 days ago