Does DIBAL-H reduce alcohol? I was reading an article by Rentsch and Kalesse  and I came across this reaction, but could not figure out how the final compound is formed:
- Rentsch, A.; Kalesse, M. The Total Synthesis of Corallopyronin A and Myxopyronin B. Angew. Chem. Int. Ed. 2012, 51 (45), 11381–11384. DOI: 10.1002/anie.201206560.