What is aromaticity? Identify aromatic molecules, especially those containing O, N, S and B
Aromaticity Worksheet CHEM 2410 Fall 2019 Determine if the following compounds are aromatic, anti-aromatic or non-aromatic. Give reasons for your answer. ***Assume all the cyclic compounds are planar (flat) for these problems. Summary Notes: Aromatic - 4n+2 pi electrons, complete cyclic conjugated pi system and planar (flat) Anti-aromatic - 4n pi electrons, cyclic conjugated pi system and planar(flat) Non-aromatic-breaks any of the above rules (all other compounds) Sp3 hybridized heteroatoms (O, S, N) are involved in the pi system Sp2...
Aromaticity Worksheet CHEM 2410 Fall 2019 Determine if the following compounds are aromatic, anti-aromatic or non-aromatic. Give reasons for your answer. ***Assume all the cyclic compounds are planar (flat) for these problems. Summary Notes: Aromatic - 4n+2 pi electrons, complete cyclic conjugated pi system and planar (flat) Anti-aromatic - 4n pi electrons, ccyclic conjugated pi system and planar(flat) Non-aromatic - breaks any of the above rules (all other compounds) Sp3 hybridized heteroatoms (O, S, N) are involved in the pi...
Predict whether the following molecules are aromatic, antiaromatic, or non aromatic and explain why: o non armannot conjugated Predict the reagents (a)/products (b) for the following transformations: SO, H.SO HNO AICI, HESO Oxidize to break aromahcity Foclo Cly radical Predict the relative ratios (major, minor) of the following products in these electrophilic aromatic substitution reactions by drawing the mechanism for the formation of each product and identifying important intermediates to describe relative stability:
a. Circle the chiral centers in the following molecule and identify them as R or S Suggest a second component for synthesis of the molecule above via a Diels-Alder reaction (i.e. completer the reaction below) c. Is the configuration of your starting material in part b, E or Z? d. The concept of aromaticity (i.e. 4n + 2 pi electrons stable, aromatic; 4n electrons = unstable, antiaromatic) can be used to understand reaction like the Diels-Alder and related reactions. Use...
Identify each of the following molecules. A. H H OH H2N H2N B. N N IL HO- 0 OH C. OH
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Identify the stereocenter(s) in Plavix. o CI b N 5 .8 a, b, and c 21 Oc d hip O с
Explain why the ionization energies of O and S are lower than those of N and P.
Choose the anti-aromatic molecule(s). A) B) C) CH3 D) ** & "NH NH N:
6.4 Identify the asymmetric carbon(s) (if any) in cach of the following molecules. (a) CHCHCHCH; (b)
S o oleob obixon ibor and add live vioo Won to cenog 3.) (8 points) Label the following molecules as aromatic, anti-aromatic, or non-aromatic. For the ones that aren't aromatic, explain why they are either non-aromatic or anti-aromatic.v n НЕ 09 NOZ 0.88 d) obinibqolayo