Question

can someone solve 8.18 and 8.19 for me, please

NUW Use HT Мен Me Base. t-Bu TEP 4 wman nas a wing oduct. Me H . Ct-Bu t-Bu because that od too highine In this case, the product is the Z isomer. The E isomer is not obtained, becau require elimination from a syn-periplanar conformation, which is eclipsed and tooh urs when each E the skill 8.18 Identify the maior and minor products for the Ez reaction that occurs who the following substrates is treated with a strong base: (b) (a) V odno CI todo (f) (d) orden (g) (h) e skill 8.19 Identify an alkyl halide that could be used to make the following alkene: PRACTICE? Try Problems 8.56, 8.63, 8.82 Stereospecificity of E2 Reactions on Substituted Cyclohexanes In the previous section, we explored the requirement that an E2 reaction proceed via periplanar conformation. That requirement has special significance when dealing stituted cyclohexanes. Recall that a substituted cyclohexane ring can adopt two a conformations: an adopt two differe

Answer 1

8.18 A Base Trang Cix-minor majour 38 rotate Prod Sympen planar Antibeni planar Ph k + El majoar minor CH3 + ch3 X A ph Αη φοραγαν A majoar. minor Ph H Ph E2 nchs I B Antipen blanar CHZ mafoar CH3 minor E2 minor Chh H3 Ph Antibenplanar majaar

sotate y Ph Ph "c13 synpenplanar mafoar Antipen Planar +,ph minor Ez u Ph pnt major minor Antipen planar (H) Ph minor Mayon Pht Antipenplanur (8.19) B2 Base Antiben blanar mayour Bage Transition state