Draw all stereoisomers formed when each alkene is treated with CHCl3 and KOC(CH3)3. a. C

Chapter 26, Problem 26.8

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Draw all stereoisomers formed when each alkene is treated with CHCl3 and KOC(CH3)3. a. C CH3 H HH C b. C C CH3CH2 CH2CH3 HH c. CH3 Finally, dihalo cyclopropanes can be converted to dialkyl cyclopropanes by reaction with organocuprates (Section 26.1). For example, cyclohexene can be converted to a bicyclic product having four new CC bonds by the following two-step sequence: cyclopropanation with dibromocarbene (:CBr2) and reaction with lithium dimethylcuprate, LiCu(CH3)2. + CHBr3 KOC(CH3)3 [1] Br Br LiCu(CH3)2 [2] CH3 CH3 two new C C bonds two new C C bonds