What is the effect of an electron-donating group (here: EtO-C,) attached to C, in the structure below? O The mesomeric effect and the inductive effect are balanced, so the chemical shift remains the same. O The chemical shift is lowered due to the mesomeric effect. O The chemical shift is lowered because of the inductive effect. O It raises the chemical shift because it withdraws electrons from the aromatic ring. O It raises the chemical shift because of the possible donation of a lone pair into the aromatic ring.

What is the effect of an electron-donating group (here: EtO-C,) attached to C, in the structure below? O The mesomeric effect and the inductive effect are balanced, so the chemical shift remains the same. O The chemical shift is lowered due to the mesomeric effect. O The chemical shift is lowered because of the inductive effect. O It raises the chemical shift because it withdraws electrons from the aromatic ring. O It raises the chemical shift because of the possible donation of a lone pair into the aromatic ring.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter23: Addition To A Carbonyl

Section: Chapter Questions

Problem 30CTQ

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