Which of the following stretches are infrared-active (i.e. show a signal in the infrared spectrum)?
1. The C=C stretch of trans-2-hexene
2. The C=C stretch of cis-2-hexene
3. The C=O stretch of propanone
4. The C≡C stretch of 1-butyne
5. The C≡C stretch of 2-butyne
Which of the following stretches are infrared-active (i.e. show a signal in the infrared spectrum)? 1....
Select the vibrations that should be infrared active. Select the vibrations that should be infrared active. CH3CH2C = CCH2CH3 (C = C stretch) (CH3)2C = O (C = O stretch) trans - 4 - octane (CH3CH2)3C - CI (C - CI stretch) CH3CH2CH2C = CH (C = C stretch)
Select the vibrations that should be infrared active. trans-3-hexene (C-C stretch) CH3CH2CH2C CC2CH2CHs (C C stretch) (CH3)2C-О (С-О stretch) (CH3CH2)3C-Cl (C-CI stretch) снзсњењење-CH (CzC stretch)
2. Which of the following compounds exhibit cis/trans Isomer CIS and transforms of the compounds that do exhibit Isomers s exhibit cis/trans isomerism? Explain why. Draw the a) Methylcyclobutane b) 3-ethyl-3-hexene c) 1-ethyl-3-methylcyclopentane d) 2,3-dimethylpentane e) 2,3-dichloro-2-hexene f) 2-butyne
Which of the characteristic stretches listed below would NOT show up in an IR spectrum of compound B shown below? NH comme le o to 8 A Et 1.CO 2.C-C 3.C-O 4.0-H 5. both 2 and 4
The boxes below are labeled by ranges within the infrared spectrum, representing the wavelengths at which specific functional groups absorb energy. The scale is shown in wavenumbers, cm–1. Classify each functional group according to the approximate range where it would produce a stretch on the spectrum. Note: The stretches of the functional groups may not fill the entire range.
Name the product of the following reaction. cis-3-Hexene. trans-3-Hexene. 1-Hexene. trans-2-Hexene. cis-2-Hexene. Addition of 2 mol of HCl to 1-butyne would yield: CH_3CH_2CH_2CHCl_2 CH_3CH_2CCI_2CH_3 CH_3CH_2CHCICH_2Cl CH_3CH_2CH=CHCI CH_3CHCICHCICH_3 In the presence of excess hydrogen bromide, what is the major product of the addition of HBr to acetylene? 1, 3-dibromoethane 1-bromoethane 1, 1-dibromoethane 1, 2-dibromoethane 2-bromoethane Which of the following compounds is the major product when 1-hexyne is treated with excess HBr? 1, 1-dibromohexane 1, 1-dibromohexene 1, 2-dibromohexene 1, 2-dibromohexane 2, 2-dibromohexane
Chapter 9 Organic Chemistry 1 Homework 7. Starting with ethyne, outline syntheses of each of the following. other needed reagents, and you need not show the synthesis of compounds prep carlier parts of this problem. (a) Propyne, (b) 1-Butyne, (c) 2-Butyne, (d) cis-2-Butene (e) trans-2-Butene (1) 1-Pentyne, (s) 2-Hexyne, (h) (Z)-2-Hexene (E )-2-Hexene, () 3-Hexyne, (k) ó b 8. Write structures for the maior arcanic products from the following reactions. Show stereoisomers where applicable. (c) (1) Na CL, (1 equiv.)...
Give the correct IUPAC name for the following compound, CH3 CEC CH3-CH, CH, CH3 O a. 3-methyl-3-hexene Ob. 3-methyl-trans-3-hexene Oc. 2-ethyl-trans-2-pentene O d. 3-methyl-cis-3-hexene Oe. 2-ethyl-2-pentene QUESTION 6 The systematic name for the following is CH3CH2-C-CH-CH3 CH3 a. 2-methyl-3-pentanal b.2-methyl-3-pentanone c. ethyl isopropyl ketone d. 2-methyl-3-propanol e. 2-methyl-3-propanone
Question 3 4-chlorobut-1-ene is the name of which among the following alkenes: A. CH2Cl=CH2-CH=CH2 B. CH2CI-CH2=CH-CH2 C. CH2CI-CH2-CH=CH2 D. CH2CI-CH2-CH-CH2Question 4 Which of the following is the name for this molecule?3,4-trans-ethene Cis-3-hexene Trans-3-hexene 2,3-cis-butene
Which of the following compounds can have cis and trans isomers? 2-Methyl-2-butene Propene 0 1-Butene 1,2-Dichloro-1-Bu What is the correct molecular formula of 2,4-Diethyltouleno OCHA 0 C₂ H₂2 G H C:oH20 18 Which of the following compounds can have cis and trans isomers? 1-Butene 2-Methyl-2-butene 1,2-Dichloro-1-Butene Propene CH3CHBr2 is obtained from O Reaction of ethyne with one mole of HBr O Reaction of ethyne with one mole of Br2 Reaction of ethyne with two moles of Br2 Reaction of ethyne...