We hardly finished talking about oxepans and Ferrier rearrangements when I spotted a paper on the synthesis of septanosides by a very similar route. This time the nucleophile is sodium methoxide and the rearrangement proceeds in an impressive yield to give a single anomer!
![](http://3.bp.blogspot.com/_q3QBScSSHhw/RqSnVzIdZwI/AAAAAAAADtY/qPz3T0FziSU/s400/Ferrier.gif)
Interesting work by Ganesh and Jayaraman at the Indian Institute of Science in Bangalore. D!
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