Question

6-95. Predict the diene and dienophik that would lead to each of the following products CFs (al (ci le) CH1 CCH, CH CO.CH, tb) (dl 10D CO,CH,

please help with the following question (a-f).

Answer 1

CH3 Reto- dienophile 0 reacHion diene 6 diene dienophile cycloadito eachor 3 Mechanism- cycloaddi hon

CO2CH3 CO2CH3 Re bo co2H3 Dials Alder reacHorn COCH3 dienophile ien CO2cH3 COCH3 CogHs cyeloaddihon ienophile Peachon CO2CH3 diene cf3 CF3 CH Re hro 3 Dials Aldes CH3 ene dienophile CF3 cycloaddiion eacFior CH 3 die ene CH 3 dienophile

Rehro Dials Aldor วeaction HS dienophile die en e -t YCOaddtHorn reachon 3 dienoph led

ocH3 oCH3 Reho Dials Alder reacon GOCH3 Cis ddienophile Cis diene ocHs OCH cycloadditon vule- The relative stereochemistvy of subst buents The cis in diene and dienophile relained in the produc eg -in cuhore example , hoc --U-ocH3 groups are cis lo each other in diene So hey are alsoeis fo rodye cH3 9rops are cis ey are also S o otherin product Also F disubsh fded liene or dienophile has foo subsh htents 41 rans to each other then hey are hrans to each otheri roduct OCH3 tran so co Trans 3 O

ocHs OCH3 Reho c_cH3 OCH Alder ReacHon dienophile diene OCH 3 ocH3 C-CH3 diene dienephle ycloaddihion