draw the following compounds. A) (R)-4-methylpentane-1,2-diol B) cis-1-bromo-2-chlorocyclobutane c) (E)-1-fluoro-1,3-butadiene
4) Draw the following compounds a. (2S,5R)-5-chloro-2-ethylhexanoic acid b. (1R,2R,4R)-4-ethylcyclohexane-1,2-diol c. (2S,3R)-3-amino-2-phenylbutanal d. (1S,2S,3R)-2-fluoro-3-propylcyclobutanol e. (2E, 7Z)-5-bromo-2,7-nonadiene
Draw structures for the following compounds. a. 2-chloro-1,3-cyclopentadiene b. 2-bromo-5-nitroaniline c. 2-chloro-5-fluoro-3-octyne
Which of the following compounds DO NOT contain a plane of symmetry? (i) cis-1,2-difluorocyclobutane (ii) (R)2-bromo-2-methylcyclohexanone (iii) 4-bromocyclohexanol (iv) cis-3,4-dimethylcyclopentanone (v) 4-methylcyclohexanol
draw the structures 2-Ethyl1,4-dimethylcycloheptane Cis-1,3-diethyl cyclobutane Trans-1-bromo-3-ethylcyclopentane Cis-1,2-diethyl cyclopropane Trans-1,2-diethyl cyclopropane 2-methylheptane 4-ethyl-2,2-dimethylhexane 4-ethyl-3,4-dimethyloctane 2,4,4-trimethylheptane 3,3-diethyl-2,5-dimethylnonane 4-isopropyl-3-methylheptane
1) Draw structures for compounds named below. A) (Z)-1-bromo-2-chloro-1-heptene B) 4-chloro-4-fluoro-2-octyne
b. Which of the following alkanes has the highest bolling point? 2,3-dimethylbutane: 2-methylpentane; 3-methylpentane; hexane c. Which of the following compounds can adopt a chair conformation in which there are no axial methyl groups? 1,1-dimethylcyclohexane; cis-1,2-dimethylcyclohexane; trans-1,2-dimethylcyclohexane; trans-1,3-di methylcyclohexane d. Which of the following compounds can adopt a chair conformation which there are no axial methyl groups? cis-1,2-dimethylcyclohexane; cis-1,3-dimethylcyclohexane; trans-1,3-dimethylcyclohexane; cis-1.4-dimethylcyclohexane cis-1,2-dimethvcyclohexane (Enter the numerical value only, without any units)? e. What is the approximate di hedral angle between the...
4. Draw the following cycloalkanes as two-dimensional structures, using wedges and dashes: trans-1-bromo-2-methylcyclopentane cis--chloro-3 ethylcyclohexane trans-1,3-dimethylcyclohexane trans-1-bromo-3 ethylcyclobutane cis-1-ethyl-4-methylcycloheptane cis-1-isopropyl-3- methylcyclopentane
7. Conformational Analysis: Chairs (25 points) Consider the following compounds: trans-1-Fluoro-2-iodocyclohexane and cis-1-Fluoro-2-iodocyclohexane Draw the skeletal structures and two chair conformations of each. Chair templates are provided for the cis compound. Redraw your own chairs for the trans compound. Circle the more stable conformation of each compound and briefly explain your selections below each pair, including the specific types of steric strain involved. Short phrases are great complete sentences not required! trans-1-Fluoro- 2-iodocyclohexane explanation for more stable conformation: cis-1-Fluoro- 2-lodocyclohexane...
We learned that to create vicinal diols from alkenes, the cis-1,2-diol or trans-1,2 diol required very different reagents. This isn't always the case and one notable reaction that defies this convention is the Prévost reaction! (4 points) To make the cis-diol, we typically use osmium tetroxide (catalytic amounts!). What other reagent combination would work for this particular transformation? a. OH OH (rac b. (4 points) To make the trans-diol, what reagent combination would be employed? ?? 1F2 OH (4 points)...
1) Draw structures for compounds named below. A) (2)-1-bromo-2-chloro-1-heptene B) 4-chloro-4-fluoro-2-octyne 2) Give IUPAC name for the following structure. 3) For each reaction below, indicate which starting material is the Nucleophile and which is the Electrophile. Show arrows to demonstrate how the transformation occurs. →^_^tts a Porto ~ onde gi 4) Draw a mechanism for the conversion of the shown starting material to the corresponding product. 5) In the transformation below, a starting material is treated with HCl to form...