Write the formula for (S)-2- bromopentane using a. Fisher projection b. Wedges and broken lines c. Upload the model in each one of the projections
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- 5. Chairs and E2 b. a. Draw the line-bond structure of (1R, 2S,3S)-1-ethyl-2-iodo-3-isopropylcyclohexane. Draw both chair flips of (1R, 2S,3S)-1-ethyl-2-iodo-3-isopropylcyclohexane. Showing all calculations, determine which is the more stable conformation. C. Which chair flip is able to undergo E2 elimination? Justify your answer. d. Show the product of such an E2 elimination using NaOEt as base.A prominent (M+ . -18) peak suggests that the compound might be what? A. Alkane B. Alcohol C. Ether D. Ketone2. Based on the shape of the molecule, what bond angles would you expect between the carbon atoms in cyclobutane? Based on a sp' hybridized carbon atom, what is the ideal bond angle? 1,3-diaxial interaction H. H.. | equatorial H. H. H- H- axial H. H. / equatorial CuH H. H- axial H H. diaxial-very unfavorable diequatorial-much more stable
- c. Add wedge-and-dash bonds to give (3R)-5-bromo-2-chloro-3-fluoro-3-methylhexane. Indicate the configuration at the 3-position only. (The configurations at the 2- and 5-positions are unspecified; those groups are used to determine priorities for the configuration at the 3-position.) Erase More Draw Rings Select Br Cl II // Cl Br F.1. Predict the correct product for this reaction. 2. Choose ALL correct representations of the product using Newman projection. A ? H B H H သက်လုံး တမျိုး … H H H D H. H H H. H H H H D₂ Pd H H D H H. • သာလိုး E H H H .H H H H D D H H H H H H H H. တ H H H. - ရွှေပိုး H H. H H H H H Hぐ=m, Part 4: Cycloalkanes and Stereochemistry. assignment. Br Br Br ...|H ...H ... H ..iBr H. Br Br .... ICH3 H. 18. For rings that an the and label each atom as R or S. Some rings will not have an R or S
- a. Draw and name all of the isomeric products obtainedfrom the monobromination of propane with Br2/light. If halogenation were a completely randomreaction and had an equal probability of occurring atany of the C—H bonds in a molecule, what percentage of each of these monobromo products would beexpected?b. Answer part (a) using 2-methylpropane as the starting material.4. The following reaction is discussed in a later chapter of the textbook. It consists of four mechanistic steps. For each step (1-3), a. Draw in all implied lone pairs. b. Draw the appropriate curved arrows to show the bonds formation and bond breaking that occur. 1 2 H 3 + + H قرة - . . ق нон H H + H H H ... . قرق - ة . -قرة H H 1 + O H H H H HConsider the reactions and the pool of choices below. Type the letter labels on the blanks provided CH3 cold dilute neutral KMNO. MAT Br2, H20 HBr, ROOR CAT BAT Pool of Choices CH. CH. CH3
- i. 2 H3C-CH2- -CH3 NaOCH 3 Answer(s) j. H3C- -CH3 BrDraw the structure(s) of the unbranched ether(s) with the chemical formula C5H120. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corne Separate structures with + signs from the drop-down menu. C P opy aste ChemDoodle remove4. Consider the two structures shown in the box. OE! OE! Structure A Structure B Complete the sentence... Structure A and Struture B TO are... A)...enantiomers. 1 (0 B)...constitutional isomers. C)...resonance structures. D)...diastereomers. de displays -