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. Author manuscript; available in PMC: 2019 Nov 1.
Published in final edited form as: J Am Chem Soc. 2017 Jul 13;139(30):10208–10211. doi: 10.1021/jacs.7b05327

Figure 4. Derivatization of cyclobutanone 5a.

Figure 4.

(a) DIBAL–H; (b), L-Selectride; (c) LiHMDS, Comins’ reagent; (d) 2,4-dinitrophenyl-hydrazine, sulfuric acid; (e) vinylmagnesium bromide; (f) phenyl-magnesium bromide; (g) isopropenylmagnesium bromide; (h) N-bromosuccinimide; (i) 1,2-dihydrofuran, n-BuLi, then silica chromatography.