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Organomagnesium compounds
The interaction of alkyl halide with Mg metal in a suitable ether solvent is the common method for the synthesis of the Grignard reagent.
Hydrolysis Grignard Reactions and Reduction
Organomagnesium halides are Grignard reagents. Francois Auguste Victor Grignard, a French chemist who received the Nobel Prize in Chemistry in 1912, created these highly useful reagents.
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- Question one parts A though c a. Which product forms from the following reaction? Answer as letter choice only (i.e., "E" not "E.") CHO HOH HOH H OH H OH CHOH Brs. H0 ??? A. В. C. D. COOH HOH HOH H OH HOH CHOH CH-OH CHO COOH но HO HOH H OH HOH ČOOH HO -H но HO H H OH HOH CHOH HOH H OH COOH b. Which of the following structures shows the Haworth configuration in the alpha configuration of the beginning sugar? Answer as letter choice only (ie. "E" not "E."). сно HO-H HO H Намorth Form Alpha Configuration H- OH нон CHOH B. A. CH,OH CH,OH CH,OH CH,OH OH OH OH O OH OH OP OH он он он OH C. Answer the following question. What is the expected product of this reaction? CHO H- -Он NABH, HO-H H- ??? OH H- -OH ČH,OH 運運重 А. В. С. CH,OH COOH COOH H- HO-H H- OH -OH OH но- но H- H- H OH H- OH OH HHOH H- ČH-OH H- -OH ČH,OH COOHS MyDen Moodle at Southea.... CI What is the major product for the reaction below? HCI a. Sallie Mae Activity... Select one: My Accounts | O a. Structure a O b. Structure d O c. Structure c Od. Structure b b. CI C. CI d. CI 7:04 PMGive the organic product. H I. III. Select one: O A. III O B. IV O C. I OD. II H CH; Br Br₂ Br H H + enantiomer Br -Br H CH₂Cl₂ CH3 CH3 II. IV. Br H H + enantiomer Br Br CH3 H CH3 Br
- Provide the appropriate reagents or product in the following examples. 1. OH O Он 2. 1. m-CPBA, CH-C MgBr THF; aq. HCI 2. Me 3. PCC, CH,C, 3. 1. LDA, THF; Mel 2. LDA, THF; Mel 3. EILI (2 equiv), Cul (1 equiv). THF: then Br 4. Meo Meo 5. Meo Meo. OMe 6. Br 1. BuLi, Ph,P. THE OMe Me 2. Br, MeCN 3. aq. HCI (4 M) Me 7. он но Et,NO (1) H20, H*; (2) Jones reagent (1) H20, H*; (2) PCC, CH2CI2 (1) conc. H2SO4: (2) Jones reagent O (1) H20, H*; (2) Tollens reagent (1) conc. H2SO4: (2) PCC, CH2CI2 O (1) conc. H2SO4: (2) Tollens reagentSelect the major product for the following reactions Br₂ EtOH A. B. C. D. E. Me e H H + enantiomer Br.. Ber: JBr + enantiomer Asal Br +enantiomer Eto... enantiomer QEt + enantiomer
- 1. Give the major product(s) of the following reactions as needed. Include any stereoisomers. NaOEt 1. Br NaOH Br 2. NaOtBu 3. A MEOH 4. Br 2. Which reaction will proceed faster A or B? H,S H2S "CI .... вll mobily ? 4:13 PM O 21% O < Homework - carboxylic a... CH3CHCH2CH2CHCH3 CH3CCO2H CH3 (c) .CO2H (d) CH3 CH3CCN CH3 (g) Br (h) CN BRCH2CHCH2CH2CO2H Q2: Draw structures corresponding to the following IUPAC names: (a) cis-1,2-Cyclohexanedicarboxylic acid (b) Heptanedioic acid (c) 2-Hexen-4-ynoic acid (d) 4-Ethyl-2-propyloctanoic acid (e) 2-Cyclobutenecarbonitrile Q3: How could you convert butanoic acid into the following compounds? Write each step showing the reagents needed. (a) 1-Butanol (b) 1-Bromobutane (c) 1-Butene How could you convert each of the following compounds into butanoic acid? Write each step showing all reagents. (a) 1-Butanol (b) 1-Bromobutane (c) 1-Butene How could you convert butanenitrile into the following compounds? Write each step showing the reagents needed. (a) 1-Butanol (b) ButylamineSynthesize each compound from toluene (CgH,CH3) and any other organic or inorganic reagents. a. CeHsCH2OC(CHa O,N H2N. b. CgH;CHO d. HOOC- -NO2 f. HO. -COOH CHO C. е. g. Br
- Be sure to answer all parts. Draw a stepwise mechanism for the following reaction: OH H,SO, Part 1: A. HSO, for B. H,SO, C. H20 view structure view structure SO2 Part 2 out of 4 OA. H;O" OB. . H,O Oc. Oc. HO draw structure... finish structure OD. H2 報 Next part +.6. Provide the structure for the major product in the following reactions. b. P f. OH g. Lia * Oia ملی CI 1. SOCI₂, pyr. 2. to Br 2 1. LIAIH4 (xs) 2. H₂O 1. LIAI(OR) 3H 2. H₂O 2. NH₂ Et₂CuLi 1. EtMgBr (xs) 2. H₂O 1. Mg 2. CO₂ 3. H* 4. SOCI₂, pyr 1. [H], NaBH3CN, EtNH₂ CI pyridineDetermine the product of the ff. rxn steps 1. CH;NO2/OH- 2. Sn/HCI 3. ΗΝΟ, A. В. C. OH -NO2 NH2 OH NO2 D.