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- Reaction of -pinene with borane followed by treatment of the resulting trialkylborane with alkaline hydrogen peroxide gives the following alcohol. Of the four possible cis,trans isomers, one is formed in over 85% yield. (a) Draw structural formulas for the four possible cis,trans isomers of the bicyclic alcohol. (b) Which is the structure of the isomer formed in 85% yield? How do you account for its formation? Create a model to help you make this prediction.4. (a) Answer the following questions based on the reaction scheme below. Jawab soalan berikut berdasarkan rajah tindak balas di bawah. Br он H,SO, 180°C E + H,N- (i) State reagents D and G. Nyatakan reagen D dan G. (ii) Draw the structural formula for compounds E, H and J. Lukiskan formula struktur bagi sebatian E, H dan J. KMNO CH,CI, HO.ASelect the method that would be successful in producing the given product in good yield starting from benzene. Assume ortho and para isomers can be separated when applicable. (Note: The steps in a method are written in the order carried out) COOH ---- multisteps SO3H O (a)Br2/FeBr3,(b)CN, (c)H3O+/heat, (d)SO3/H2SO4 (a)Br2/FeBr3, (b)CN, (c)SO3/H2SO4, (d)H3O+/heat. (a)CH3Br/FeBr3, (b)KMnO4/H+.(c)SO3/H2SO4 O (a)SO3/H2SO4(b)CH3Br/FeBr3, (c)KMnO4/H+. (a)CH3Br/FeBr3, (b)SO3/H2SO4, (c) KMnO4/H+.
- A student attempted to prepare 1-chlorobutane by mixing 1-butanol with NaCl in acetone. Was the student succesful? Explain.1. The following synthetic schemes all have at least one flaw in them. What is wrong with each? (a) Br CO2H CH3CH2CHCH2CH3 1. Mg CH3CH2CHCH,CH3 2. NaCN 3. H30* (b) .CH2CO2H „CH2CH3 1. LIAIH 2. H30* (c) он он CH3CCH2CH2CI 1. 1. NaCN 2. H30* CH3CCH2CH2COH CH3 CH3(A) moose the correct product. 1. NaGE, Ero 2. H₂0, A 食。 CO₂ Et -CO₂E7 (B) Coret 31. Choose the best reagents. & 4 (A) 1. LAH; H₂0 2. CHz | 3. H₂0/H+ (B) 1. NaOH, -78% 2. CH31 3. H₂0/H (C) 1. LDA, -78%℃ 2. CH31 3. H₂₂0/H+ 1. Nah, 0°C 2. CH31 3. H₂2₂0/H+* (<) Colt (D)
- a) Give the structures of all possible (and meaningful) products for the following reaction. Please also note which product of the elimination it is. CI - HCI A B с b) It is possible that the reaction products in 1a) are not formed in the same amount. Mark below for your reaction products whether it is a main product (HP) or a by-product (NP). A B C c) Name the reaction products you drew under 1) with the full IUPAC name. A B CDraw the structure of the following three isomeric acid chlorides with chemical formula C,H,CIO. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Consider E/Z stereochemistry of alkenes. • In cases where there is more than one answer, just give one. Acid chloride #1: (E)-4-hexenoyl chloride C P aste орy ..." ChemDoodle Acid chloride #2: (Z)-3-hexenoyl chloride Previous Next Email Instructor Save and Exit4. Write the structure of the product resulting from the reaction of ne reaction of 2% clohexene, CH3 H,C- CH2 (a) With 2% ethanolic PBP solution. CH3 Br (b) With 2% aqueous KMNO4 solution. Br 1,2, di breno, 4-methyl Cycbherane
- Synthesize the following compound from cyclohexanone and any other organic compound and provided reagents. 1) (CH3); CuLi (1) Br2, CH300H (1) CH3B1 C. A. В. (2) H20 (2) Li¿CO2, LiBr, DMF (2) H20 heat NaOEt, E1OH D. OH, H20 E. (1) CH3CI, DMF F. CH2(CN)2 (2) H30" Part 1 out of 3 edit structure .. Organic compound4. The Jones oxidation reaction has two basic parts: addition of chromic acid onto the alcohol (step 1) then reaction of the chromate ester to form a carbonyl (step 2). lorisoo |3| Cr-OH 0 НО HO-Cr-OH - + H2О :Cr-OH ОН (Cr+6) (Cr+4) a. Give the curved arrow mechanism for step 2 (reaction of the chromate ester) in this reaction. CH O HOH b. Is carbon oxidized in step 1 or step 2? How can you tell?Reactions: Provide the structure(s) of the expected maior oreanic productis. Show stereochemistry where needed and write NR if there is no reaction. H2SO4, 1000C heat a. OH OH 1. TSCI, Pyridine 2. NaCN, DMSO b. HO, PCC, DCM с. (CH3);COK d. t-BUOH Cl 1. CH3MGBT, Et,O 2. H;0* C.