Unambiguously identify the structures of the major products, reactants, or reagents for the following reactions, including...
XVII Unambiguously identify the structures of the major products, reactants, or reagents for the following reactions, including stereochemistry when appropriate. H30+ 5. OCH3 NCH2CH3 6. H30 CHO CHO 9 CHO 10 N(CH3)2 H3O+
3. Predict the major product (only one product) in each of the following reactions and indicate the type of mechanism. (3 pts; no partial point) Mechanism SN2 Sn1 HO HBr 0°C, H20 E2 E1 Mechanism Sn2 Sn1 H2SO4 E2 E1 Mechanism HBr Sn2 Sn1 rt, H20 E2 E1
3. Predict the major product (only one product) in each of the following reactions and indicate the type of mechanism. 3. Predict the major product (only one product) in each of the following reactions and indicate the type of mechanism. (3 pts; no partial point) Mechanism Sn2 Sn1 HO HBr moy ng heo 0°C, H2O E2 E1 Mechanism Sn2 Sn1 H2SO4 E2 E1 Mechanism HBr SN2 Sn1 rt, H20 E2 E1 OH
4. Predict the products of the following reactions & indicate whether they are most likely to go through an SN2, SN1, E1, or E2 mechanism. NaCN DMSO NaOH CH3OH heat Only one product is formed in the following E2 elimination reaction. Draw an arrow-pushing mechanism for the reaction and provide the correct product structure. Include a 3-D drawing (chair conformation) displaying proper stereochemistry of the transition state to explain formation of only the major product. CH3 •Br NaOCH3 ~"'CHS
5. Predict the major organic products of the following reactions. Show all asymmetric carbons with wedgeldash notation (i.e., as shown in the starting material). If a reaction produces a racemic mixture, show only one of the enantiomers produced. Carefully note the requested reaction mechanism for each reaction. (20 pts) NaOCH3 CH3OH SN2 Br CH3OH SN1 Br NaOCH3 CH3OH E2 Show Zaitsev product Br CH3OH Br E1
16. Give the major product that you would expect to be formed in each of the following reactions. If you think there is no reaction write NR after the arrow. In each case give the mechanism (SN1, SN2, E1 or E2) by which the product is formed. Also indicate the correct stereochemistry when applicable. Both product and the mechanism should be correct to get credit. No partial credit. Nal -BuOK Acetone t-Buo NaSH DMF Br, H NaOMe DMSO MeOH,rt t-BuOH...
please explain the work 1. Predict the major organic product for each of the following elimination reactions, and indicate whether each one occurs via the E1 or the E2 mechanism. Be sure to clearly indicate the proper stereochemical relationships between groups (if appropriate), and write the word "racemic" under any compound that is formed as a racemic mixture. Br H3CY CH3 NaOCH3. CH3OH OH يلي H2SO4 ما H3c OTS KOt-Bu t-BuOH AgNO3 H20 Ph HC, NaOH H2O OH H2SO4
2. (1.5 pts) Label the following reagents as Good or Poor Nucleophiles AND as Strong or Weak Bases. OK Na SH 3. (1.5 pt) Predict the productts) of the following reactions, if there are multiple products indicate which, if any, is the major product. Be sure to clearly mark the stereochemistry of chiral carbon atoms and draw multiple products if there is more than one stereoisomer that forms. HCI MeOH H2SO H2 Pd/BaSO4 quinoline 4. (3 pt) For the following...
With explanation please -- thanks! 9. (30 pts) Predict whether the following conditions would mainly proceed via an SN2, SN1, E2, or E1 mechanism (write your answer into box on left). Draw the major product (including enatiomer wher appropriate) in each reaction and show stereochemistry (where appropriate). SN2, SN1 E1, or E2 conc.H2SO4 heat SN2, S1 E1, or E2 H2O SN2, SN1 E1, or E2 NaOEt EtOH, heat SN2, SN1 E1, or E2 v O-CF3 H. KOtBu D. H tBuOH...
3. (continued) For each reaction, draw the structure of the major product(s) including stereochemistry where appropriate. Fill in the box below each arrow with the mechanism(s) that will be followed (SN1/E1, SN2, or E2). For SN1/E1 reactions, draw products for both. g) Сн,сн,он h) CH2O- Na CH3OH i) Me. Br A Eto Nat Me