explain how i am suppose to do these i need major help thxs!! Homework #4 Due...
Need help with these Orgo Chem problems. mostly with the
naming part.
thank you
Draw the most stable chair conformation of cis-1,2-dimethylcyclohexane 1) Draw the ring flip of the structure in question #1 2) Draw all contributing resonance structures for the following molecules. Make sure to show all arrows showing 3) movement of electrons. :c: Name the following molecules 4) 5) Assign R/S configuration to the molecule, 2-bromobutane, shown Br H H H HyC CH3 2-bromobutane Which of the following...
4. Draw the most stable and most unstable Newman Projection for the following molecules using the rotation around the C3-C4 bond (use the IUPAC rules to number the chain) 5. Draw the two chair conformations for each of the following cyclohexane derivatives and then choose the conformation that is the most stable. Br BA 3 3 3 $ 2879 So ya 6. For the following compounds, identify the chiral carbons with an asterisk (*) and for those that are not...
Q11. The correct structure of trans-1-bromo-3-methyl cyclopentane is ...Br (A) (B) -Br Br (C) (D) *Br Q12. The correct order of increasing stability for the following conformations is CH, H Н. Н H H H CH2CH3 H Н CH,CH CH CH3CH2 CH H2C CH, H CH, I II III (A) III < III (C) II <I<III (B) I<III <II (D) I< II < III Q13. Identify the relationship between the following two Newman projections. CH, H НАС. H Н;С. Н...
I
need help with the excercises listed on the first page: 18 and
19
18. Complete each of the following reactions. Then determine where the equilibrium is moving it is say which one favors the formation of the reactants and which one favors the formation of the products. If you cannot decide with the structure, compare the pka value of the acid with that of the conjugate acid. 4. CHỊCH NH • Hỏi - CHCH-CC-H.H c. CHOH + H-Br =...
i need help on 1,2,3
CHE 230.001 Homework Assignment 8 Due Date: Friday November 1 by midnight. Please keep all responses within the boxes provided Name: Student ID 1. (10 points) Draw cach of the following in their most stable conformation. Pay attention to the positions as well as the orientations of the different substituents. 2. (5 points) Draw the given monosaccharide in the most stable chair conformation Pay attention to the positions as well as the orientations of the...
I need two products and I am not sure what I am getting
wrong.
Problem 8.46 (c) Predict the major products of the tollowing reaction, and give the structures of any intermediates. Include stereochemistry where appropriate. CH2 (1) BH3 THF (2) H2O2, OH Draw the molecules on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars, including charges where needed. The single bond is active by default. Show the appropriate stereochemistry by choosing the...
How do I know whether the diol was meso or racemic using the NMR
spectrum? Do we need to see the NMR spectrum of the acetonide
product? How do they different between the compounds from meso and
racemic?
The Synthesis of 2,2-Dimethyl-1,5- Dioxolane; The Acetonide Derivative of a Vicinal Diol PRELAB EXERCISE: Draw the most stable structures of meso- and racemic-1,2-stilbenediol using Newman projections. Draw the same two isomers with the hydroxyl groups eclipsed. In Chapter 55, yellow benzil was...
I need some help to answer these following questions.
Thanks.
66. Which molecule is the strongest base? O-CH3 H2N Cl H2 What is the order of increasing reactivity in an SN1 reaction for these compounds? 67. Br Br Br I < 11 < 111 (C) 68. What is the starting material for this reaction? NH3, H+ NaBH3CN NH2 он COCI согн Which compound will be protonated to the greatest extent in 1.0 x 10-3 mol/L aqueous HC1? 69. NH 2...
CHEM 2343A HOMEWORK W13 Name: DUE 11/18/19 at 9:10 AM There are total of 4 questions on this homework assignment 1. For the reaction outlined below in la and I draw out the reaction mechanism using arrow formalism to describe how the reaction below occurs. Be sure to draw out all action intermediates & the moment of all electrons needed to justify the formation of the indicand product. You do not need to add in any reagents that are not...
(C) Protonation of alkene to form a carbocation followed by addition of bromide ion (D) Addition of the proton to one face of the alkene with simultaneous delivery of a bromide ion from a different molecule of H-Br. 11. Which compound is the strongest nmucleophile for reaction of methane methanesulfonate (CHOS0.CH) in methanol at room temperature? (You may assume that everything is soluble in methanol) (A) potassium bromide (B) cesium iodide (C) sodiam chloride (D) lithium flaoride 12. Which proton...