Homework Answers
Hydroboration is regioselective and stereospecific. Because the addition of hydrogen and Boron is from the same side and hence further -OH also goes on the same side. There is no other possibility to alter the stereochemistry. Hence only one product is going to form with respect to stereochemistry. Hence this reaction is stereospecific. (syn addition!)
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2. Is the following reaction stereospecific, stereoselective, or both (1 pt)? Me BH3; H,02 ОН Me...
1) Provide the starting material for the following reaction. (0.5 pts) Он Он 1) Hg(OAc)2, H20...
1) Provide the starting material for the following reaction. (0.5 pts) Он Он 1) Hg(OAc)2, H20 2) NaBH (provide starting material) 2) Provide the major organic product(s) for the following reactions. If stereoisomers are formed, please show both stereoisomers. (0.5 pts each) 1) BH3 THF a) 2)120 NaOH 1) NaOH, H-O, 55°C b) 2) OsO4 t-BuOOH 1-BuOH, NaOH Br2 c) CCl4 H2O, H2SO d) H9SO4 2 equivalents HBr e) 3) The following ction generates an ether. Provide the major organic...
Finish the following reaction, assume anti addition, and is this a stereoselective reaction? Why? H CH3...
Finish the following reaction, assume anti addition,
and is this a stereoselective reaction? Why?
H CH3 + Br2 H H.CO
mat is the product of the following reaction? 1. (XCULI 2. H,0* ОН ОН он он...
mat is the product of the following reaction? 1. (XCULI 2. H,0* ОН ОН он он ОН ОН он он // 14 ОН он он он
1) 2) 3) What is the major organic product for the following reaction? он H,So, он...
1)
2)
3)
What is the major organic product for the following reaction? он H,So, он What is the required reagent(s) for the following reaction: What is the starting material for the following reaction? 1. DIBAH H 2. H2O
Please show the complete arrow pushing mechanism to get both products. ОН BH3-THE н,О, NaOH, H2O ОН and/or 1-hexene
Please show the complete arrow pushing
mechanism to get both products.
ОН BH3-THE н,О, NaOH, H2O ОН and/or 1-hexene
SAMSUNG 2.) Draw the products of the following six reactions. no," H20 Он, cold 1) BH3,...
SAMSUNG 2.) Draw the products of the following six reactions. no," H20 Он, cold 1) BH3, T 2) H2O2 KMnO4, H2O +OOH,heat- then H,0° 1) Os04 pyridine 2) NaHS03,H20 1) Hg(OAc)2, THF, H20 1) 03 DCM, cold Provide the structure or fill in the missing spectral information. IR 1890 cm1 (sharp) 3005 cm (sharp) Integration 3 H Splitting
What is (are) the expected major product(s) for the following reaction sequence? 1. BH3. THE 2....
What is (are) the expected major product(s) for the following reaction sequence? 1. BH3. THE 2. H2O2. NaOH OH ОН OH + enantiomer + enantiomer + enantiomer II III c I and II I and III
4 pts Question 14 What is the Major product of the following reaction? 1. BH3, THE...
4 pts Question 14 What is the Major product of the following reaction? 1. BH3, THE 2. NaOH, H2O2 ? ОН Н ОН ОН А B С E OD ОВ Ос ОА
Predict the product for the following reaction. 1. DIBAH 2. H,0 I || ОН ТОН ОН
Predict the product for the following reaction. 1. DIBAH 2. H,0 I || ОН ТОН ОН
Н. F 1. BH3, THE 2. H2O2, NaOH, H2O H H Bra, CC14 :OH NaOH H...
Н. F 1. BH3, THE 2. H2O2, NaOH, H2O H H Bra, CC14 :OH NaOH H 1) Hg(C2H302)2, H2O 2) NaBH4, NaOH, H2O X H H PBrz, Et20 ОН
1) Provide the starting material for the following reaction. (0.5 pts) Он Он 1) Hg(OAc)2, H20 2) NaBH (provide starting material) 2) Provide the major organic product(s) for the following reactions. If stereoisomers are formed, please show both stereoisomers. (0.5 pts each) 1) BH3 THF a) 2)120 NaOH 1) NaOH, H-O, 55°C b) 2) OsO4 t-BuOOH 1-BuOH, NaOH Br2 c) CCl4 H2O, H2SO d) H9SO4 2 equivalents HBr e) 3) The following ction generates an ether. Provide the major organic...
Finish the following reaction, assume anti addition,
and is this a stereoselective reaction? Why?
H CH3 + Br2 H H.CO
mat is the product of the following reaction? 1. (XCULI 2. H,0* ОН ОН он он ОН ОН он он // 14 ОН он он он
1)
2)
3)
What is the major organic product for the following reaction? он H,So, он What is the required reagent(s) for the following reaction: What is the starting material for the following reaction? 1. DIBAH H 2. H2O
Please show the complete arrow pushing
mechanism to get both products.
ОН BH3-THE н,О, NaOH, H2O ОН and/or 1-hexene
SAMSUNG 2.) Draw the products of the following six reactions. no," H20 Он, cold 1) BH3, T 2) H2O2 KMnO4, H2O +OOH,heat- then H,0° 1) Os04 pyridine 2) NaHS03,H20 1) Hg(OAc)2, THF, H20 1) 03 DCM, cold Provide the structure or fill in the missing spectral information. IR 1890 cm1 (sharp) 3005 cm (sharp) Integration 3 H Splitting
What is (are) the expected major product(s) for the following reaction sequence? 1. BH3. THE 2. H2O2. NaOH OH ОН OH + enantiomer + enantiomer + enantiomer II III c I and II I and III
4 pts Question 14 What is the Major product of the following reaction? 1. BH3, THE 2. NaOH, H2O2 ? ОН Н ОН ОН А B С E OD ОВ Ос ОА
Predict the product for the following reaction. 1. DIBAH 2. H,0 I || ОН ТОН ОН
Н. F 1. BH3, THE 2. H2O2, NaOH, H2O H H Bra, CC14 :OH NaOH H 1) Hg(C2H302)2, H2O 2) NaBH4, NaOH, H2O X H H PBrz, Et20 ОН
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