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Design a strategy to synthesize 1-phenylbuta-1,3-diene from a Wittig reaction
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- Devise a synthesis of (1Z,3E)-1-phenylocta-1,3-diene from hex-1-yne and (Z)-2-bromostyrene using a Suzuki coupling.Show how to convert ethylene to Bromoethane compound.Provide a synthesis starting from benzene, toluene, bromocyclohexane and any other carbon compound having 4 carbons or less. Reagents not bonded in the final compound do not count for the 4-carbon rule, but you can use compounds like TsCl or PPh3.
- Authentic skunk spray has become valuable for use in scent-masking products. Show how you would synthesize the two major components of skunk spray (3-methylbutane-1-thiol and but-2-ene-1-thiol) from any of the readily available butenes or from buta-1,3-diene.1-bromo-2-methylpropane can be synthesized from tert-butanol in two steps. Provide a synthesis route that uses a radical-based process.Show how to convert ethylene to 2-Chloroethanol compound.
- Diphenylacetylene can be synthesized by the double dehydrohalogenation of 1,2-dibromo-1,2-diphenylethene. The sequence starting from (E)-1,2-diphenylethene consists of bromination to give the dibromide, followed by dehydrohalogenation to give a vinylic bromide, then a second dehydrohalogenation to give diphenylacetylene.(a) What is the structure, including stereochemistry, of the vinylic bromide?(b) If the sequence starts with (Z)-1,2-dibromo-1,2-diphenylethene, what is (are) the structure(s) of the intermediate dibromide(s)? What is the structure of the vinylic bromide?How to synthesize 1-phenyl-1-bromopropane from benzene?Propose a structure for an aromatic hydrocarbon, C10H14, that can form only one C10H13Cl product on substitution of a hydrogen on the aromatic ring with chlorine.
- 10. Draw and provide an IUPAC name for the acyclic diene that forms trans 1,2- dimethylcyclohexa-3,5-cyclobutene in a photochemical electrocyclic reaction. Clearly show the frontier orbitals involved in the reaction.Show how to prepare 1-nonene from 1-bromoheptane, via the use of a Gilmanreagent. Show how the Gilman is synthesized from bromoethylene.Why do cis-1-bromo-2-ethylcyclohexane and trans-1-bromo-2-ethylcyclohexane form different major products when they undergo an E2 reaction?