Skip to the content
Browse the library

Buchwald–Hartwig amination: (2R)-8-chloro-4-methyl-2-phenyl-3,5-dihydro-2H-pyrido[3,2-f][1,4]oxazepine → gamma-Secretase modulator 6

0% yield, run at 120 °C, as recorded by experimental reaction archive. The written procedure is below. One of 3 recorded runs making this product; all of them are compared below.

verified record, 0% 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

COCNCNCCCCCNOCCCCCCCCNCCCCCCCNNCCCl
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
Reactant(2R)-8-chloro-4-methyl-2-phenyl-3,5-dihydro-2H-pyrido[3,2-f][1,4]oxazepineC₁₅H₁₅ClN₂O—
Reactant6-Methoxy-5-(1-methyl-1H-pyrazol-4-yl)pyridin-2-ylamineC₁₀H₁₂N₄O—
ReagentCesium carbonateCCs₂O₃—
CatalystTris(1,1-dimethylethyl)phosphineC₁₂H₂₇P—
CatalystBis(dibenzylideneacetone)palladiumC₅₁H₄₂O₃Pd₂—
Productgamma-Secretase modulator 6C₂₅H₂₆N₆O₂0%

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

  • 0% of gamma-Secretase modulator 6.

Every recorded run making this product

3 runs of this class made the same product and differed in what else was in the flask. They are listed from the highest yield down, with this page's run marked.

CatalystReagentsSolventTemp.TimeYield
Binap, (A+-)-; Palladium (II) acetatePotassium CarbonateToluene120 °C—101%
Binap, (A+-)-; Bis(dibenzylideneacetone)palladiumsodium 2-methylpropan-2-olateToluene100 °C—32%
Tris(1,1-dimethylethyl)phosphine; Bis(dibenzylideneacetone)palladiumCesium carbonatenone listed120 °C—0% (this run)

Every value is as the source recorded it. A run with no yield was reported without one, and nothing here is averaged, modelled or filled in.

Procedure

Copied from the source record, unedited

Charged a standard microwave vial with a mixture of 6-methoxy-5-(1-methyl-1H-pyrazol-4-yl)pyridin-2-amine (100 mg, 0.49 mmol), (R)-8-chloro-4-methyl-2-phenyl-2,3,4,5-tetrahydropyrido[3,2-f][1,4]oxazepine (135 mg, 0.49 mmol), cesium carbonate (239 mg, 0.73 mmol), TRIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (22.42 mg, 0.02 mmol), Tri-tert- butylphosphonium tetrafluoroborate (14.21 mg, 0.05 mmol), and 1,2-dimethoxyethane. The atmosphere was inerted through vacuum-nitrogen cycles and the contents were heated at 120 °C for a period of 30 min. LCMS indicates reaction progression is less than 10%. Reaction aborted. Not progressed.

The source

This record comes from experimental reaction archive (ord-f55732d796df4a6bad136ec929c58223). Open the source and check it against what is on this page.

  • experimental reaction archive record ord-f55732d796df4a6bad136ec929c58223 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.