New Tandem Zn‐Promoted Brook Rearrangement/Ene—Allene Carbocyclization Reactions.

Abstract

New Tandem Zn-Promoted Brook Rearrangement/Ene-Allene Carbocyclization Reactions. -The new tandem methodology represents a unique and straightforward way to generate polysubstituted cyclopentylmethylzinc and cyclopentylidenemethylenezinc derivatives as single diastereomers under mild conditions. -(UNGER, R.; COHEN, T.; MAREK*, I.; Org. Lett. 7 (2005) 23, 5313-5316; Dep. Chem., Tech.-Isr. Inst. Technol., Haifa 32000, Israel; Eng.) -R. Steudel 13-080