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- Define Isolated dienes ?Choose the structure that fits the descriptions below from the pool of choices. Use the dropdown list to select your answe swers. Pool of Choices CAT MAT RAT VAT PAT НАT A conjugated diene Choose. An isolated diene Choose. an alkene with possible rearrangement product (1,2-H shift) with reaction to HI Choose. + a diene capable of having 1,2 and 1,4-addition products Choose.1. Assign E or Z to the following alkenes. If the alkene does not have stereochemistry, write "NONE". H CI H3C SH T. H CI, ОН H3CH2C НО D D EN C(CH3)3 CH3 Me H Et N' 'N' C=C H3C Et Me what Columbus sought in the 'Indies' - Piperine CH2OH Br (H3C);C, H3C HOH, CH,CF, H3C Br HOH2C НО H the spice Columbus found (Capsaicin) HO. Muscalure Bombykol (the sex attaractant for the male silkworm) (the sex attaractant for the common housefly) OH .CO2H the "heart healthy" part of olive oil a 'less healthy' trans fatty acid from trans fat
- a. How many linear dienes have molecular formula C6H10? (Disregard cis–trans isomers.) b. How many of the linear dienes in part a are conjugated dienes? c. How many are isolated dienes? d. How many are cumulated dienes?Rank the dienes by DECREASING REACTIVITY in Diels-Alder reactions (most reactive on the left). CN CH3 OCH3 II II IV O A. V > IV > || > | > || O B. V > || > NIl > | > IV O C. IV > T > I| > ||| > V O D. II > |II > V >[ > ]V O E. V > III > I|| > | > IV A Moving to another question will save this response. ype here to searchDraw structural formulas for the diene and dienophile that combine in a Diels-Alder reaction to form the product shown. CH3O ● Diene + Dienophile -> Consider E/Z stereochemistry of alkenes. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple products using the + sign from the drop-down menu. ● H
- H. CH3 H3C C2H5 H. For the follówing diene, which is the correct configurationally prefix? O 2E, 4E O 22, 4Z O 22, 4E O 2E, 4Z O None of the aboveJators. aleacti ong 04 d 1. Predict the major Diels-Alder products of the reactions below. Indicate stereochemistry if applicable. Label the diene and dienophile. Ph. J Ph CI + * + H3CO OCH 3 CEN Pu C1 * CI осиз CH3 !!!!CEN4.- Predict the product for each Diels-Alder reaction. Indicate stereochemistry where appropriate. स a) b) H3C, H3C + H3C CHO A ent 10 150 COOH + ·E· <- c) COOH BAS 5.- Retro Diels-Alder: show a combination of diene and dienophile that would result in each Diels-Alder adduct.
- 6. Provide the products for the reactions. Take note of the changes and how they tie together for the overall result. Br H20 NANH2 З еq Br Br NaNH2 2 eq Br 1. NANH2, 3 eq 2. Hао Br2 1. NaNH2, 3 eq 2. H2O OH conc. H2SO4 Br2 heatSelect to Draw Os04 (catalytic) NMO OH OHChoose the structure that fits the descriptions below from the pool of choices. 1. An isolated diene 2. an alkene with possible rearrangement product (1,2-H shift) with reaction to HI 3. a diene capable of having 1,2 and 1,4-addition products 4.