How many stereoisomers are formed in the reaction below? Please note: both alkenes will react under these conditions. 1. Hg(OAc)2, H2O/THE ? 2. NABH4 O 2 O 16 O 3 O 8 O 4
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- Please identify priorities of functional groups and name following molecules based on thier stereochemistry as R or SIs the following alkene E,Z, or neither? a. E b. Z c. neither d. It is one or the other, but which is impossible to determine from the information givenConsider a reaction where cis-but-2-ene is treated with OsO4 followed by NaHSO3/H2O. Draw the structure of one product that is formed in the reaction, including correct stereochemistry.
- Which alkene from the choices can react with excess Hbr to yield the major product shown in the first photo?OChem HELP... Draw the conformational structures (chair or boat conformations) for the MAJOR product formed when 1-tert-butylcyclohexene reacts with each of the following reagents. Also, indicate if the product obtained is racemic form. a) Br2, CCl4 b) Br2, H2O c) OsO4, then aqueous NaHSO3 d) ICl e) mCPBA, then H3O+, H20 f) O3, then Me2S (conformational structure not required) g) BH3:THF, then H2O2, HO- h) D2, Pt i) Hg(OAc)2 in THF-H2O, then NaBH4, HO- j) BD3 :THF, then CH3CO2TAddition of HBr to allene (CH2=C=CH2) forms 2-bromoprop-1-ene ratherthan 3-bromoprop-1-ene, even though 3-bromoprop-1-ene is formed froman allylic carbocation. Considering the arrangement of orbitals in theallene reactant, explain this result.
- Stereochemistry: Assign each of the following alkenes as E or Z or unassignable. Also assign each of the following alkenes as cis or trans or not applicable.Which alkene would give the product alcohol as shown as themajor product? A) I B) II C) III D) Both I and IIAddition of HBr to allene (CH2=C=CH2) forms 2-bromoprop-1-ene rather than 3-bromoprop-1-ene, even though 3-bromoprop-1-ene is formed from an allylic carbocation. Considering the arrangement of orbitals in the allene reactant, explain this result.
- Addition of HBr to allene (CH2 = C = CH2) forms 2-bromoprop-1-ene rather than 3-bromoprop-1-ene, even though 3-bromoprop-1-ene is formed from an allylic carbocation. Considering the arrangement of orbitals in the allene reactant, explain this result.What is the product (A, B, C, or D) of the reaction shown in Image30? a. C b.D c. B d. A1. i.What are the various ways by which alkenes may be synthesized? ii. Give two examples each of Unsymmetrical alkenes and reagents. iii. Give two examples of reactions of alkenes that result in Anti-Markonikov’s addition products