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s. Write a structure for the major product of each of the following reactions. triple bond...
ChemActivity 10: Oxidation and Radu 11. Draw the major organic product of each of the following reactions (always assume exces | Họcác TC–CH, - Model 5: Reduction of Alkynes H, and Pt or Pd metal will reduce both it bonds of a triple bond; however, careful use of a weaker catalyst (e.g. Lindlar catalyst) will reduce only one bond, giving either a cis or trans alkene. Synthetic Transformations 10.3-10.5: Stereoselective Alkyne Reductions H/Pt or Pd metal 107 R-cac-R HH H2/Ni,B...
Practice Worksheer 8: Alkynes 4. Draw the major product for each transformation. Draw the major regioisomer and sterosome where appropriate. CI, CHCI HgSO4, H,SO a. B He, diglyme b, HD, NaOH H2 (excess), Pd/C CHE Hz (excess), Pd/CaCO3 quinoline, Pb(OAC) CH₃ Na”, NH3(1), -196 °C Page 3 of 4
Draw the structure of the MAJOR ORGANIC compound formed in each reaction. Assume the reactions have been terminated and neutralized. a. Ethyl acetate NaOEVEtOH b. EtO C-CH2-CH2-CH2-CH2.CO2Et NaOEU/HOEt Ph-C(O)-CI c. (HaC).CH-CO2Et LDATHF + HO. d. Ethanal Ph-C(O)-H Ha0* (cat) e. Acetone + H2C O + Et NH f. Triethylamine HBr/H2O g. Ph-C(O)-NH2 + Br2 4 NaOH h. (H,C)2CH-C(CH)2 + N(CHs)s HO i.Ph-N2, Cl- CuCN- Na/E1OH HaO* (cat) j. cyclohexanone H2NOH Pd(OAc)2 (1 mole%) k. Ph- 4-O2N-CeHe-HC=CH2 Cul/Pd(PPhale L.HO-CH2-CH2-C-H1-CH-CH-(CH2),-CHg
predict the major product of the following reactions:
H2, Pt E CH=CH2 CH3 d2 az но CH3 Hz Pd CH3 нс н с с н Сн, CHCl3 КОН 1. О, сна, 270, HOẶC
6. Predict the major product for the following reactions. PhCO3H OsO4, H202 H2O, H H20, H Hz. Pt CH=CH2 CH3 dz 02 HO Cola CH3 H2 Pd CH3 HC H с – с KOH H CH3 СНаз, 1. O, CHCI2 2Zn, HOẶC
1. (24) Write structural formulas for the major organic product(s) for the following reactions. Be sure to indicate the stereochemistry when relevant. HC CH=CH2 H CH,OH CH2OH 1. Na, liq. NH (b) CH,CH.C=CCH CH3 HẠCH, B, P NH, 2.D2, Pt Cl2 HC CCH2CH=CH CH,CH HCC CH,Cl2 1. BH/THF (d) CH,CH,C=CH2 2. H,02, HO", H0 CH -0.47- CH; Br2 excess NaCl 1. 03,-78°C 2. (CH3)2S woboto (h) + Br₂ -
Give the structure of the major organic product(s) for each if
the following reactions (or reaction sequences). Show all hydrogens
when they are critical, e.g. for aldehydes
3. Give the structure of the major organic product(s) for each of the following reactions (or reaction sequences). Show all hydrogens when they are critical, e.g. for aldehydes. Hot 3 O + Brz Born b. 2 8Hz WH2 + CH₃ CH-C-0H - So A 70 DE CH2 Br 0 Hz cat per B...
3. (24 pts) Provide the structure(s) of the major product formed in the following reactions. Be sure to show any significant stereochemical details. (a) 2 1. -OH,H,O 2.H,O", heat (b) ci AICI (C) SH HS H H,SO -OH 1. Na,Cr,O, H,SO4 2. SOCI, pyridine 3. excess (CH,CH2)2NH excess (e)
Draw the structure(s) of the major organic product(s) of each of the following reactions. Be sure to indicate stereochemistry when it is relevant. CH3CH2 H CH2CH3 (15) 5 CH2CH3 CHE CM H3PO4 H C H CH₂ CH3 (E1) CH3 CH₃ CH2 Pou-Y CH3CH2, H HOBCH2CH3 Na+OCH2CH3 CH₃ nov (12) x CH3 (15) d. en Ha CH OCH₂ CH₂ - 4 CH CH₃ -9 CH₂ CH2
7. Draw the structure of the missing major organic product(s) for each of the following reactions. There is no “No Reaction in any of the answers. Show correct stereochemistry when needed! NO ON Na S204 (excess) NaOH, H20, heat Sebacoyl chloride PhCH OH OH (excess) 0 H2SO4, heat Aryl Bromide 1) Mg, THF 2) CH2=0 3) H20, H307 PhCH,CH,OH1 H2SO4 (catalytie) T heat H2Cro (excess)