Propose a mechanism for the following transformation 5)6)7)8)9)يدR₁RCIiR HHO.RSRSMeO+MeNH HCIpyridineR'+ HO₂CRR'A + COS + RSHOMeMeWeinreb amide"P(OET)2HⒸ CO₂R¹CH3C(OET) 3CH3CH₂CO₂HheatOHEtOR'MR'M = R'Li1) Cy-N=C=N-Cy2) R'OHCO₂R¹R'MgXR'₂CuLi[3,3]-Sigmatropic EtO.rearrangementOR'R RR

Answered: Image /qna-images/answer/91848e9f-66a5-4e71-bc87-859aff92497b.jpg

5) 6) 7) 8) 9) R SR R" mgar Meo Me '•N•" H HCI pyridine 요 R H J HO. R "P(OET)2 HOCO₂R CH3C(OET) 3 CH3CH₂CO₂H heat OH R' R' RN-OME Me Weinreb amide + HO₂CR + COS + RSH EtO. R'M R'M = R'Li 1) Cy-N=C=N-Cy 2) R'OH CO₂R¹ R'MgX R'₂CuLi [3,3]-Sigmatropic EtO. rearrangement OR' J₂ R R¹ R

5) 6) 7) 8) 9) R SR R" mgar Meo Me '•N•" H HCI pyridine 요 R H J HO. R "P(OET)2 HOCO₂R CH3C(OET) 3 CH3CH₂CO₂H heat OH R' R' RN-OME Me Weinreb amide + HO₂CR + COS + RSH EtO. R'M R'M = R'Li 1) Cy-N=C=N-Cy 2) R'OH CO₂R¹ R'MgX R'₂CuLi [3,3]-Sigmatropic EtO. rearrangement OR' J₂ R R¹ R

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter23: Carbon: Not Just Another Element

Section: Chapter Questions

Problem 52PS

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