1. How could you distinguish the following pairs of compounds spectroscopically? Explain in detail how you would ma...
Which of the following pairs of compounds are cis-trans isomers? Which of the following pairs of compounds are cis-trans isomers? CH сн, н A. and сн, Н сн, H В. н CH and н Cн, Н C. сн, сн, CH and СH, сн.CH, CH н D. and -CH CH-CCH н Н,с. CH Cн, H and E. Cн, н н H T LL
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
Describe the characteristic infrared absorption frequencies that would allow you to distinguish between the following pairs of compounds (a) 2,3-dimethylbut-2-ene and 2,3-dimethylbut-1-ene (b) cyclohexa-1,3-diene and cyclohexa-1,4-diene (с) CН:(СH>);—С—н аnd CH:(CH)2 —с- (d) CH,СH,CH,—С-NH, and CH,CH,—С-CH-CH, CH pentanal pentan-2-one butanamide pentan-3-one ОН (е) СH:(СH>)5 — С—с-н and CH3(CH2)6 — С%3DN () CH,CH,CH, —С— ОН CH —CH—CH,—С—Н and octanenitrile butanoic acid 3-hydroxybutanal oct-1-yne Describe the characteristic infrared absorption frequencies that would allow you to distinguish between the following pairs of compounds (a)...
How could you distinguish the following pairs of isomeric compounds using IR and MS? For some pairs, only one of these spectral techniques may be different enough to distinguish the compounds. 2. and (b) 0, and 0. and
What H-NMR information would you use to distinguish between the following pairs of compounds? 2. and and b а and Он н H Но and c) d)
1. Draw the following compounds. Each question is out of two marks. Drawing Name 2-phenyl hexanal 2-ethyl octan-1,2,7-triol para-chlorophenol cis-pent-3-en-2-ol 1,3-diphenylpropan-2-one ethyl butanoate 4-hydroxy-4-propyl hept-2,5-diene-1-amide N-pentyl-2,3-difluoro butanamide 2. Name the following compounds. Each question is out of two marks. Drawing Name CH3 CH Н.С Он Н. Н. Н.С Н. Н Н.С Н Н с Н CH CH НАС Н.С. CH2 Н.С. Н сн. HC H2 CH, CH Он Н.С CH, Н С. Н H C Н.С Н. На CH Н.С...
Organic Chemistry Lab Structure & Solubility: Explain how you could distinguish between the following pairs of compounds? Which compounds would be water soluble? STRUCTURE AND SOLUBILITY Name: Lab Section: I. Esplin how you could distinguish between the following pairs of compounds. Which compounds would be water soluble? 1. Butane and 2-chlorobutane 2. Butane and 1-butanol 3. 1-butanol and 2-butanol 4. 1-butanol and butanoic acid
Question 2: Determine in the following examples if the base is strong enough to deprotonate the terminal alkyne. сH, нс. t-BuOK + Cн Question 3: A terminal alkyne is prepared by treating the dihalide with excess (xs) sodium amide, followed by water. Predict the major product and draw a mechanism for its formation: Br 1) xs NaNHNH 2) Hо Br Identify reagents that you could use to achieve the following transformations: CH3 Нас Н,с CH3 CH3 HyC Н.с CHs CH3...
How would you NMR (^H or 13C) spectroscopy to distinguish between the following pairs of compounds?
Questions: 1. Show how one could carry out each of the following transformations using the Grignard reaction. Any necessary organic or inorganic reagents may be used. Name each reactant and product. CHS(CH2)2CH,Br (CH-CH,CH, CH),CHон (a) -CH— CH-CHо -- Н.С -Cн-сн-сн— сн- (b) ОН CH,(CH2) (c) н CH,(CH)(CH) C(CH)2 Он OH (d) - OC_H (CoH)C=CH2 Н.С