3. Complete the following reactions. HBr conc. H2SO4 2-methyl-2-pentanol (CH)CO Na (CH3)COH РСС (1) BH3-THF (2)...
Complete each of the following reactions. H20, H2SO4 CO3H H3C H2CH3 H3C CH (1) BH3, THF (2) H202, NaOH H2CH3 CH22, Zn(Cu) H3C H2CHa (1) Hg(OpCCHa)2-H2O (2) NaBH4, NaOH
1. Give the major product of the following reactions, write NR. if no reaction happens. Indicate the stereochemistry if necessary CHCI KOC(CH3). (CH),COH 1. conc. HBr, heat 2. KOBU, HOBU 1. NaOM, MOH CI 2. BICN 1. 1 eq. BH3. THE 2. H2O2, NaOH, H2O 3. Hg(OAC), MeOH 4. NaBH4, NaOH, H2O 1. conc. HCI 2. LDA, THF 3. O. CH,OH 4.(CH), 1. Hg(OAC), THE 2. NaBH, NaOH, H2O > OH (Hint: product has a bicyclic ring)
1. Consider the reaction of 3-ethyl-2-methyl-3-pentanol with concentrated H SO HCHCH, conc. HSO4 HC-CO-CH.CH heat CH, OH Show the mechanism and give the product of the reaction.
Show the reactions with mechanisms for 2-methyl-2- propanol with a) H2SO4 in THF and b) HBr. Also, explain the general types of mechanisms.
1. PREDICT THE PRODUCT: Provide the structure of the major product expected from the following reactions or reaction sequences. Make sure you account for any regio- and/or stereochemistry! (24 pts.) H2O 1. Hg(OAC), CH, OH 2. NaBH H2SO4 H20 1) BH-THF 2) H202, KOH HBr Bry, H2O HBr ROOR 1. BH3-THF 2. H2O2, NaOH H20, H2SO4 1. NaNH2 H2 H-CEC-CH2 CH2 CH3 2. CH CH Br Lindlar cat 1. Sia BH-THF 2. H2O2, H2O
Predict the major product(s) from the following reactions. f) " HCA CH3 CHg 1. BH3-THF 2. H2O2, NaOH 2
Predict the major organic product or products of each of the following reactions. H2SO4 a) (CH3),CHCH-CH2- 1. Hg(OAc), H,0 2. NaBH4 b) (CH3)2CHCH=CH, 1. BH3-THF 2. H2O2, NaOH c) (CH3)2CHCH=CH2
What are the best reagents to complete this synthesis? O 1. BH3 – THF; 2. H2O2, NaOH; 3. PCC O 1. BHz – THF; 2. H2O2, NaOH; 3. H, CrO4 01. 03; 2. DMS 01. Hg(OAC)2, H2O; 2. NaBH4; 3. PCC Predict the product of the following reaction scheme: 2LIATH H2O OH OH Predict the product for the following reaction | | Identify the reaction sequence of reactions that can achieve the following transformation a- O (1) Br2, CCl4: (2)...
Problem #4 Draw the substitution product from each of the following reactions. 1. BH3-THF 2. H2O2, NaOH ( =CH HgSO4 H2SO4 H2O Extra Credit Show how you would accomplish the following conversion. More than one step is likely necessary.
1. Predict the products of the following reactions. CH3 TsCl Pyridine NaCN CH3 PBr3 Pyridine NaCN (1) BH3:THF (2) H2O2,OH H2SO4(cat.) H2O (1) Hg(OAc)2 (2) NaBH/OH 2. Write the mechanism of the following reactions он но он Ph BF3 Ph