On the contrary! A rhodium‐catalyzed restructuring reaction of 3‐arylcyclobutanols to 1‐indanols is reported, in which two chiral quaternary carbon centers are formed in a highly enantioselective fashion by a sequence of two contradictory elementary steps, that is, carbon–carbon bond cleavage and carbon–carbon bond formation.
Enantioselective Synthesis of Indanols from tert-Cyclobutanols Using a Rhodium-Catalyzed CC/CH Activation Sequence
作者:Tobias Seiser、Olivia A. Roth、Nicolai Cramer
DOI:10.1002/anie.200903189
日期:——
Activation! An enantioselective activation of tert‐cyclobutanols by a chiral rhodium(I) complex has been developed. The resulting reactive organometallic species lead (presumably by a CHactivation pathway) to aryl rhodium intermediates that provide substituted indanol derivatives in excellent enantio‐ and diastereoselectivities (see scheme).