(a)
Interpretation: The product formed when the given compound undergoes thermal electrocyclic ring opening or ring closure is to be predicted. The given process is to be labeled as conrotatory or disrotatory. The stereochemistry around tetrahedral stereogenic centers and double bonds is to be indicated.
Concept introduction: Electrocyclic reactions involve the conversion of
Curved arrows aid in determining the movement and flow of electrons in the reaction. The electrons that take part in the
(b)
Interpretation: The product formed when the given compound undergoes thermal electrocyclic ring opening or ring closure is to be predicted. The given process is to be labeled as conrotatory or disrotatory. The stereochemistry around tetrahedral stereogenic centers and double bonds is to be indicated.
Concept introduction: Electrocyclic reactions involve the conversion of
Curved arrows aid in determining the movement and flow of electrons in the reaction. The electrons that take part in the chemical reactions are shown by the curved arrows.
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ORGANIC CHEMISTRY
- Synthesize each compound from cyclohexanone and organic halides having ≤ 4 C's. You may use any other inorganic reagents.arrow_forwardDraw the structure (including stereochemistry) of an alkyl chloride that forms each alkene as the exclusive E2 elimination product.arrow_forwardDraw the products obtained (including stereochemistry) when each compound is treated with LDA, followed by CH3I.arrow_forward
- Give the IUPAC name for each compound. (include R,S designation or E, z configuration if needed)arrow_forwardWhat alkynes give each of the following ketones as the only product after hydration with H2O, H2SO4, and HgSO4?arrow_forwardDraw the monochlorination products formed when each compound is heated with Cl2. Include the stereochemistry at any stereogenic center.arrow_forward
- 9.44 Draw the products of each reaction and indicate stereochemistry around stereogenic centers. a. b. C. d. e. f. OH HD OH OH OH OH OH HBr HCI ZnCl₂ SOCI₂ pyridine TSCI pyridine HBr HCI KIarrow_forward10.64 Devise a synthesis of each compound from cyclohexene as the starting material. More than one step is needed. a. CO b. C. CN OH "SH + enantiomerarrow_forwardDraw all stereoisomers formed in each reaction.arrow_forward
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