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- Q17. Compound 1 can undergo an intramolecular reaction to give cyclic product 2. Using curly arrows, show the mechanism of this reaction – note that the mechanism involves more than one elemental step - and draw the structure of 2; chemical formula is provided as guidance. H2N. C5H9NO CH;OH 2Arrange the compounds below in order of increasing reactivity in a SN2 reaction. 1. (CH3)2СНCI 2. CH3CH2B1 3. CH3CH2C1 A) 1; 2; 3 В) 3;B 2; 1 C) 1; 3; 2 D) 2; 1; 3 E) 3; 1; 2b).. .. Under each potential product of this E2 elimination, write "major product," "minor product," or "not formed." Me Br H Me Me OH Me Ph Ph H Me H Et Me Me Me Ph Ph Me Me Et
- How do we synthesize compound 2 from benzene?The cycloaddition of 2-methylfuran and the unsaturated lactam (see below) yields up to 4 regioisomeric and diastereomeric products, all chiral and racemic. + N-Ph CH3 a) Draw the structure of the 4 possible regio- and diastereomers of this reaction. b) Which compound will be the major product obtained? Explain your answer based on effects of primary and secondary orbital interactions. O 4 possible regio- and diastereomers 80 °CTreatment of 1,2-dibromoethane with the dithiolate dianion shown in the reaction below leads to two products as shown. Draw the structure for each molecular formula and provide a detailed mechanism for the formation of both products.
- NaN3 НО. NH compound c compound d CI H₂, Pt -85 [References] compound a SOCI₂ SOCI₂ compound d compound e Moclobemide compound b CI The above reaction scheme presents one possible synthesis of the compound. Work out the synthesis on a separate sheet of paper, and then draw the structure of compound e. Consider E/Z stereochemistry of alkenes. • Do not show stereochemistry in other cases. {n [F ? ChemDoodleⓇProvide a synthetic strategy for the construction of molecule Q from molecule R. You may use any reactants/reagents/conditions that are necessary for your synthesis to be successful. CHO CN &=0 OHC Q RIdentify the best conditions to complete the SN2 reaction shown below. A) CH3I, THF B) CH3CH₂I, THE C) CH3CH₂CCNa, THF D) CH3CH₂CCNA, CH3OH E) KI, THF
- Q17. Compound 1 can undergo an intramolecular reaction to give cyclic product 2. Using curly arrows, show the mechanism of this reaction – note that the mechanism involves more than one elemental step - and draw the structure of 2; chemical formula is provided as guidance. H2N. C5H9NO CH3OH 2Draw a plausible mechanism for the formation of phenol shown below. Provide explanations for each step in the mechanism. (HINT: The mechanism involves electrocyclic reactions, NOT sigmatropic rearrangements.) HOʻQ12. (1bremeetblbenzene 1 ydergOesan elimination following an E1 mechanism. Fill in the following synthetic scheme by drawing the structure of intermediate 2 and product 3. The chemical formula of product 3 is provided as guidance.