(a) Use the picture of the catalyst complex in Fig 11 3a to explain why most E allylic alcohols undergo asymmetric epoxidation more rapidly than their Z isomers (b) Would the same phenomenon be observed with (2) DET, the enantiomer of the DET used in Fig 11 3 Explain H C C CHOH R H an E allylic alc...

a A substituent that is cis to the CH 2 OH group points back into the catalyst and the resulting ...

(a) Use the picture of the catalyst complex in Fig. 11.3a to explain why most E allylic...

Question:

(a) Use the picture of the catalyst complex in Fig. 11.3a to explain why most E allylic alcohols undergo asymmetric epoxidation more rapidly than their Z isomers. H C=C CHOH R H an E allylic alcohol R H C=C CHOH H a Z allylic alcohol

(b) Would the same phenomenon be observed with (2)-DET, the enantiomer of the DET used in Fig. 11.3? Explain. m R :O: -: "CH H C(CH3)3 FIGURE 11.3 (a) (c) H R : CH H :0: :F C(CH3)3 these hydrogens are involved in van