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Buchwald–Hartwig amination: 1-(Benzyloxy)-4-bromo-2-fluorobenzene → 4-(benzyloxy)-N-(2-(tert-butyldimethylsilyloxy)ethyl)-3-fluoroaniline

44% yield, run at 120 °C, as recorded by experimental reaction archive. The written procedure is below.

verified record, 44% yield recorded, Not balanced as written, From experimental reaction archive

Reagents, catalysts and solvents are in the table below.

The atoms, from reactants to products

CCCCSiCCOCCNCCCCOCCCCCCCCFCBr
Reactants · 1/6
breakingformingbond order changesmapped atom that changes

Drawn from the record's atom map: which bonds break and which form between the reactants and products the source listed. It shows a change in connectivity, not a simulated trajectory and not a mechanism.

What was in the flask

RoleSpeciesFormulaYield
Reactant1-(Benzyloxy)-4-bromo-2-fluorobenzeneC₁₃H₁₀BrFO—
Reactant(2-Aminoethoxy)(tert-butyl)dimethylsilaneC₈H₂₁NOSi—
ReagentCesium carbonateCCs₂O₃—
Catalyst2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylC₃₃H₄₉P—
CatalystPalladium (II) acetateC₄H₈O₄Pd—
SolventTolueneC₇H₈—
Product4-(benzyloxy)-N-(2-(tert-butyldimethylsilyloxy)ethyl)-3-fluoroanilineC₂₁H₃₀FNO₂Si44.07%

The equation does not balance as written. That is usual for an experimental record: the source listed what it put in and what it measured, not a stoichiometric equation.

Conditions

Temperature
120 °C

Only the dimensions the source stated are listed. Anything absent here was not recorded, and it is not inferred from what the class usually needs.

Yield

  • 44% of 4-(benzyloxy)-N-(2-(tert-butyldimethylsilyloxy)ethyl)-3-fluoroaniline.

Procedure

Copied from the source record, unedited

PdOAc2 (42.3 mg, 0.19 mmol) and dicyclohexyl(2',4',6'-triisopropylbiphenyl-2-yl)phosphine (90 mg, 0.19 mmol) were added in one portion to a degassed solution of 1-(benzyloxy)-4-bromo-2-fluorobenzene (530 mg, 1.89 mmol), 2-(tert- butyldimethylsilyloxy)ethanamine (441 mg, 1.89 mmol) and cesium carbonate (921 mg, 2.83 mmol) in toluene (15 mL) at 20°C in a microwave vial. The microwave vial was sealed and the reaction was heated to 120 °C for 12 hours in the microwave reactor and cooled to RT. The reaction mixture was diluted with EtOAc (50 mL), and washed sequentially with water (50 mL) and saturated brine (50 mL). The organic layer was filtered and dried over Na2SO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradie

The source

This record comes from experimental reaction archive (ord-c8028b7fd0b24a71a931a3ca28fc4dd0). Open the source and check it against what is on this page.

  • experimental reaction archive record ord-c8028b7fd0b24a71a931a3ca28fc4dd0 from dataset "750 AstraZeneca ELN dataset" (url: https://chemrxiv.org/engage/chemrxiv/article-details/60c9e3f37792a23bfdb2d471). No atom mapping is provided by the source.

    experimental record · quality medium · source

experimental reaction record.

How to read this record

This is one experiment, not a rule. It says that on one occasion these species were combined under these conditions and this came out. It does not say the reaction will give the same result on your substrate, and nothing on the page has been generalised into a claim that it would.

The pathway is a separate question, kept on separate pages. A mechanism here is the canonical arrow pushing for a class, run on real structures and labelled rule-derived. It is not evidence, and this record is not a mechanism.