What is the mechanism for each of these transformations?
12. CH3CH(CH2CH3)Cl + pyridine CH3CH(CH2CH3)Cl ------ >
13. CH3CH2CH2C(CH3)CHCH3 + 1. BH3 *THF 2. H2O2, NaOH, H2O ------ >
14. 1 –hexyne + HBr (excess) ------ >
What is the mechanism for each of these transformations? 12. CH3CH(CH2CH3)Cl + pyridine CH3CH(CH2CH3)Cl ------ > 13. ...
Multistep reaction mechanisms Group ActivityTreating (S)-2-butanol with HBr results in the following two step reaction: Step 1: CH3CH(OH)CH2CH3 + HBr ⇌ CH3CH(OH2)CH2CH3+ + Br-Step 2: CH3CH(OH2)CH2CH3+ + Br- ⇌ CH3CH(Br)CH2CH3 + H2ODraw a mechanism for each step. Draw structures for all reactants and products, including correct stereochemistry (wedges and dashes). Show all the curved arrows in each step, and label each curved arrow according to whether it represents proton transfer, loss of a leaving group, nucleophilic attack, or carbocation rearrangement.
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
In each reaction box, place the best reagent and conditions from the list below. OH a 2) 3) H2S04, (conc.), heat NaH BH3/THF H2O2, NaOH, H2O SOCl2 Br2, H20 PBr3 03 NaOH HBr macmillan learning each reaction box, place the best reagent and conditions from the list below. 1) 2) OH 3) OH 4) H2O2, NaOH, H20 CH3COO- CH30- H30* BH3/THE H2SO4 (conc.) NaBH4 NaOH TsCl, pyridine (CH3)3C0-
In each reaction box, place the best reagent and conditions from the list below. CH3 2) 3) H2, Lindlar catalyst H2O, H2SO4 CH3CH2Br Br2 bromocyclohexane BH3/THF SOCl2 excess NaNH2 HBr CH3Br H2O2, NaOH, H2O
14. Provide all of the organic products for the following transformations: A. Å Br2, CH2CL2 B. 1. Hg(OAC)2, H2O 2.NaBH4 OH C. SOCI2 CH3 Me D 1. BH3 2. NaOH, H2O2
2. Draw the major product(s) from the reaction of the starting material below with the following reagents: (12 marks) (a) (b) (1) BH3, THF (2) H2O2, NaOH, H2O Cl in excess EtOH (0) I-CI (d) (1) O3. CH CI: (2) Zn, acetic acid (e) (1) (1) OsO4, THF (2) H2S (1) Hg(OOCCH3)2, H2O (2) NaBH4, NaOH, H2O
In each reaction box, place the best reagent and conditions from
the list below.
In each reaction box, place the best reagent and conditions from the list below. 2 equiv. NaNHz excess NaNH2 CH3Br H20, H2SO4, HgSO4 Na, NH3 (1) H2O2, NaOH, H2O NaBH4 HBr Br2 CH3CH2Br H2. Lindlar catalyst BH3/THF PBr3
Question 3 Draw the mechanism for the following transformations: Нас снз CH3 H-SO Hс Он Question 4: 1) Hg(OAc) H,o 2) NaBH Нас- CHy Н,с сн, Question 5: Predict the product(s) of the following reaction: 1) BH, THF 2) H2O2, NaOH CH2 H,с Question 6: Predict the products of each of the following reactions: CH3 Hас- На Ni - CH3
What are the products of the following reactions? Draw structures of the reactants (where the chemical name is given) and products. 1. 2-methylpropene ----- H2O, H+ ------> 2. propanol ------Jone’s Reagent-----> 3. CH3CH(Cl)CH2CH3 + NaOCH2CH3 ------------> 4. acetone --------CH3MgBr, H+---------> 5. CH3CH2CH2Br + KOH ------ethanol------> 6. 2-methylpropene ------ 1. BH3 ------2. H2O2, NaOH---------> 7. benzene + 3H2 ------Ni (metal) catalyst -----------> 8. butanoic acid + ethanol ------------>
13. (12 pts-4 pts each) Show how you could carry out th how you could carry out the following synthesis reactions by placing the letters corresponding to the appropriate reagents above each ar must be in the correct order to receive full credit. priate reagents above each arrow. The reagents A. HBr, ether B. Br2, CH2Cl2 C. Br2, H2O D. 1. Hg(OAC)2, H2O/THF 2. NaBH4 E. 1. BH3, THF 2. H2O2, OH F. H2SO4, H2O/HgSO4 G. NBS, hy H. H/Pd/C...