These are examples of Grignard reaction in which an alkyl, vinyl or aryl magnesium halide (Grignard reagent) reacts with carbonyl group of an aldehyde or ketone or carbondioxide to yield alcohol or carboxylic acid ( in case of carbon dioxide).
The reaction (D) will not give the product as shown. Rather it will form cyclohexane.
3. Circle the answer. Which of the following reactions does not give the product indicated? A...
This is for Organic II. Thank you! Give the primary product that would result from the following reactions: NOTE: If the problem involves multiple reactions, and you cannot determine the final product, draw the structure of any of the intermediate products (and indicate which reaction the product is for, i.e. Step # 1 , Step # 2 , etc.) 1) BHs, THF 2) н.о,. он-) 3) (CH3)2NH 4) H2, Pt/C Cat. н. он N-CH3 b) 1) н,о'*) 2) Na2Cr o,,...
Predict the product(s) using the same alkene reactant for the following reactions: 2. н, (a) Pt/C D, (b) Pt/C Cl, (c) CH,Cl, Br, (d) Н.о Cl, (e) CH,OH HI (0 DBr (g) НВr (h) нолу ноно (0) 1. Hg". THF-H,O 2. NaBH/NaOH 1. В, Н, ТHF (k) 2. H,O/NaOH кMпо, H,о (I) cold 1. OsO, (m) 2. NaHSO, 1. KMnO/OH/heat (n) 2. Н.О" 1. 0/CH,CI, (o) 2. Zn/H,O 1. O, (p) 2. H.о/он
Z0 7. Predict the major organic product for each of the following reactions. Ph MgBr H H 2. H,0 COH-H 4 Phf_Ен снсн, В. rts OH 1. Na CEN 2. H,O cEN H-C CNa CEC-H 2. H,0 oH OH (1 mol) /H30 1. HO 2. Ph "MgBr H 3 Н,о" 1. CH,CR,L Cho OnO OH 2 H,о" Com- 1. NaBH 2. H30 3 H,0 fo-
Ch 16.1 Give the major product(s) or the following reaction ao,a OH N ? OH io OH H There is no reaction under these conditions or the correct product is not listed here Gve the major product(s) of the following reaction COCH OH N H OH 0 OH H There is no reaction under these conditions or the correct product is not listed here. В 1) BAIH (-Bu), (-78°C) (0.5 moles) 2) ное ? оо н ОН ОН OCH, OH...
1) What are the products of the following sequence of reactions? Write the structure of the intermediates (reaction with Mg), and the structure of the final product. 1) Mg, Diethyl ether Н.о А В Br A) 2-butanol and MgHBr C) butane and Mg(OH)Br B) butane and MgHBr D) 2-butanol and Mg(OH)Br 2) What is the major product of the following reaction? Write the structures of intermediates and the products. 2) G) PO 2. H,о* Mg, Diethyl ether А 1. Н,С-0...
15. (3 pts each) Give the product(s) for the following reactions, and name all reactants and products. CH, он ОН н,с + H3c— сн - сн 3 Нас NH2 он + о н Н H-с-с-о-н Но -P -ОН н Н ОН
Chem 6A Homework #8 (28 pts) Due: 12/2/19 in class Give the organic product(s) of the following reactions Name Write your answers on this sheet. 1) CH3CH Mg CH3CH2CH2CI 2) H,о 1)LIAIH 2) н,б осн, н 1) ether Acetone CH3CH2CH2LI + 2) н,о* Hас Он 1) NaBH 2) н,о' BrMgсHCH,CHз CH2CH3 2) Н,о он Он РСС он PBr он о о но TsCl KCN CH3CH2OH
8. Give the structures of the expected product(s) of the folowing reactions. If more than one product is reasonable, indicate just the major product. If more than one product possible, explain your choice in a couple of words OH aq HSO anh. H,SO (major pd only) heat OH anh. H,SO heat b) anh. H,SO OH heat d) OH PCC PhBr Mg К.Сrо, vinyl bromide но Mg 9. Give the product of the following readtions la) Mg, I 1b) ethylene oxide...
please help! 1. Give the major product for the following reactions. (3 points each) 1. H2CrO4 ОН 2. CH3CH,MgBr 3. H3O+ Ph a. 1. Na ОН 2. Br b. 1. НОСH-СH20Н, Н+ 2. 2 PhMgBr ОСНЗ 3. НаО, H+ c. NaOCH3, CH3ОН (cold, short time) Н d. 1. PPH3 `Br 2. BuLi 3. e.
Which of the following reactions would not normally yield an alcohol? A. Oxymercuration/ de mercuraction of alkenes B. Hydroboration of alkene C. Reaction of a carboxylic acid with NaBH4 D. Reaction of ketone with a Grignard reagent Which set of reagents is the best to perform the following transformation? OH step(s) A. PCC; CH2MgBr, POCIz/pyridine B. tosyl chloride; CH3MgBr C. PBrz; Mg(0); CH31 D. CrOz/H3O+; NaBH4, CH MgBr 1) excess LiAIHA 2) Н,0* І, Но но- Но он но- он...