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Complete the reaction. Me Me 0. CHO CO2Et Ph3P Me PhCO2H (cat.) PhH, 50 C Ph. OTBS . 90% TBS = SiMe, 'Bu = Me

image text in transcribed Complete the reaction.

Me Me 0. CHO CO2Et Ph3P Me PhCO2H (cat.) PhH, 50 C Ph. OTBS . 90% TBS = SiMe, 'Bu = Me OHCO. Mere OBn + TBSO PPh3 TBSO" OBn NaHMDS THF, 0 C H Me

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