Draw the major product of this reaction. Ignore inorganic byproducts. IN H cyclopentanone pH 4-5 Draw Enamine 1. CH3CH=CHCHO, heat 2. H3O+ Drawing
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- 6. Provide the missing reagent(s) that gives the desired product in high yield. POMOL 129 129 16m2 sn RCH₂CH₂ ? CH₂CH₂R 20112⁰ D">OH H₂CO-D H H A) NaOCH3 B) 1. TsCl/Base; 2. NaOCH3 C) 1. NaH; 2. CH3I D) 1. CH3COCI/Base; 2. NaOCH3i. LIAIH4 i. deprotection .CO2ME J CH2=CHCOCH3 protection ii. H30* ii. dehydration K H The synthesis of K from H involves a 3-steps reaction as shown above. ii. Suggest the reagents involve in the protection, deprotection and dehydration steps.CH3CH2CHCH2CH3 CH3CH2CHCH2CH3 2. NACN 3. H3o* (b) _CH2CO2H CH2CH3 1. LIAIH 2. H30* (c) он он CH3CH2CH2CI ČH3 1. NaCN 2. H30* CH3CCH2CH2COH ČH3 2. Identify the missing reagents a-f in the following scheme: Br CO2H CHO
- a) Give the major products or reagents represented by letters A-F: Me NABH, i) MeOH i) CH3NH2 LIAIH4 CI iii) H20 HO. C Br i) NaCN iv) HD ii) H3O i) Base v) OEt ii) H,0 / Heat CHO e OH vi) F H. H20Draw the major product(s) of the following reactions, if there is a reaction. Be sure to include stereochemistry in your products. 1. NaBH4 2. Нзо* 1. Nac=CH 2. Hо* H. CH;MgBr Ph CH3 Ph- -P= 0: Ph H H3C :O H3C H3C. 'N' H. CH3 CI SOCI2 pyridine2. Consijder the reactiojn scheme below a. Draw the major product of this reaction. Show clearly (using wedge-and-dash lines) all stereoisomers formed under these reaction conditions. 1. BH3:THF 2. H2O2, NaOH b. What is the stereochemical relationship between the different stereoisomer products you drew in part 2a.?
- W X Select reagent W and Y 1 HNO3 H₂SO4 2 CH3C1₂ AICI 3 3 Cl₂, FeCl3 ) 4 503, H₂SO4 NO₂ S0₂t10) Give the major organic product(s) or reagents needed. Show stereochemistry where appropriate. a) OH K2Cr207, H2SO4, H2O HO. b) Br. B(OH)2 Pd(PPH3)4, NaOH(aq) c) Br2, H20 но CI d) B-H e) 1) NaH 2) 3) G1 Ru Catalyst ноProblem 19 of 85 Submit Draw the major product of this reaction. Ignore inorganic byproducts. 1. NaOCH2CH3, 25°C 2. PhCH2Br (1 equiv) Select to Draw >
- What is the major product of this reaction? olo Br2 (one equivalent) ? Br Br (a) (b) Br (c) (d) Br O A. (a) В. (Ь) C. (C) D. (d)13. Compound 1 is an acetyl protected precursor of the phytonutrient pterostilbene (2), a natural antioxidant founs blueberries. Which reagents would you use to synthesize 1 starting with 3 and 4? Sal A) PhB(OH)2, KCO₁ B) Pd(OAC)2, 2 PPh₁, K₂CO C) Cul, H₂O/H₂0 D) NaOEt/EtOH 14. Which is a D-sugar? O HO- HOH HO-H HO-H A CH₂OH A H A HO- --H HO-H H- HO-H 15. Which of these compounds is the best Michael acceptor? CH₂OH B 16. What is the final product of this reaction sequence? B -OH B CI SO₂H NaCN DMSO . This compound does not undergo Diels-Alder reactions ber A) it lacks electron-withdrawing groups B) it lacks strong electron C) It cannot al HO- H-OH -H H-OH H- da C 2 in -OH CH₂OH C 70% H₂SO4 reflux HO -H HOH H-OH -H CH₂OH D HO- OH 3. D OHName the following structure CI 1111 A. (45)-4-Chloro-4-methyl-2-hexyne B. (35)-3-Chloro-3-methyl-4-heptyne C. (3R)-3-Chloro-3-methyl-4-hexyne D. (4R)-4-Chloro-4-methyl-2-hexyne