The syn-anti ratio of 7-(R-substituted)-norcaranes (I, R = Ph. F, Cl) formed in the cycloaddn. of cyclohexene (II) with PhCH2F, PhCH2Cl, PhCHBrF, PhCHBr2, FCHBr2, ClCHBr2, or CH2Cl and BuLi in various solvents under N was examd. with respect to influences ...
1970