Fmoc-Cl: spot the conditions flaw

Single question

One-step preparation of Fmoc-Cl from 9-fluorenylmethanol plus phosgene. Substrate, reagent, and reaction class are right. Check the solvent and the base.

Anhydrous chloroformate synthesis

Why chloroformates hydrolyze in aqueous base

Distinguishing Schotten-Baumann amide coupling from chloroformate prep

Find the flaw

Click the step that contains the flaw, or pick “No flaw” if you think every step is correct.

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