How many stereoisomers exist for the following compound? It is helpful to draw them all out in determining your answer. Record your answer as a number (e.g. 99). NH2 Ph Ph NH2
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- 7. Draw the two chair conformations for the molecule below. Given the corresponding energy values, place the conformations in the appropriate boxes. Substituent AG° (eq→ ax) (kcal/mol) -CN -CH, 0.2 NEC 1.7 less stable chair more stable chair Clearly explain why the energy barrier associated with a nitrile group (-CN) moving from an equatorial position to an axial position is much lower than for a methyl group (-CH3).The following molecule has a stereoisomer which is referred to as its enantiomer H₂C ΤΟ H₂ H₂ Compound #1 H CI CH CH3 CH3 Draw a representation of this molecule's stereoisomer in the box below Draw only one molecule in each drawing box.How many asymmetric centers are present in a molecule of 2,4,6-trimethylheptane? please answer me
- Draw all possible stereoisomers for each of the following compounds (a-e). Four copies of the compound are provided in the sketch box. Using the wedge and dash tools, modify the given structures to draw all possible stereoisomers. If there are fewer than four stereoisomers, delete any extra structure(s) that aren't needed (each possible stereoisomer should be drawn only once). To delete a drawing, double-click on it to select the structure, and press the delete key (or use the eraser tool). CH₂ CH3 CH3 CH3 CH3 ✔ Edit Drawing CH₂ CH3 x CH3a. Draw the 14 constitutional isomers of molecular formula C8H9Cl that contain a benzene ring.b. Name all compounds that contain a trisubstituted benzene ring.c. For which compound(s) are stereoisomers possible? Draw all possible stereoisomers.1a. How many stereogenic centers are present 1c. Draw a three-dimensional structure of a in the structure below? Indicate them with asterisk(s). How many stereoisomers stereoisomers are possible? chiral compound with the molecular formula of C4H4Cl₂ that does not have a stereogenic carbon. In addition, draw the enantiomer of this compound. Number of stereogenic centers: Number of stereoisomers possible: 1b. Draw one of the two most stable stereoisomers of the compound in 1a using a planar structure with wedges and dashes. Now draw it in its preferred chair conformation. 1d. Draw two meso compounds with the molecular formula of C7H14.
- a. Draw the 14 constitutional isomers of molecular formula C8H9Cl that contain a benzene ring. b.Name all compounds that contain a trisubstituted benzene ring. c.For which compound(s) are stereoisomers possible? Draw all possible stereoisomers.For which compound containing a heteroatom (an atom other than carbon or hydrogen) does the molecular ion have an even-numbered mass? For which does it have an odd-numbered mass? Q.) A bromoalkane with the molecular formula CnH2n11BrWrite the complete common (not IUPAC) name of each molecule below. Note: if a molecule is one of a pair of enantiomers, be sure you start its name with D- or L- so we know which enantiomer it is. molecule i H3N + NH3 common name (not the IUPAC name) H N NH ☐ شهدة + NH3 | ☑
- 2. The following molecule is one enantiomer of methylenedioxymethamphetamine (MDMA). 2a. Circle all of the stereocenters in MDMA 2b. Assign the absolute stereochemistry (R or S) for each stereocenter .CH3 HN H H *CH3XIX. Draw the ring flip for compound A and label compound B. Calculate and compare the energies of the two conformers (A and B respectively), knowing that a methyl-methyl gauche interaction is 3.8 kJ/mol, the H-CH3 diaxial interaction is 3.75 kJ/mol and the CH3 - CH3 diaxial interaction is 15 kJ/mol. Which isomer is more stable? 4 H3C 5 CH3 A 6 2 CH3 CH3 BDetermine the R/S configuration of each chiral center in the molecules shown below. (Do not include lone pairs as an attachment when identifying the chiral centers.)