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Pathfinder Cookbook - reaction details
Reaction id: 0501011055_35, verified by Personal Chemistry ©

20c

4
TMS-Cl
MeCN

21c

Yield: 96%  Time: 600s   Temperature: 150 °C

Chemicals
 Name MW [g/mol] Density [g/ml] Amount [mmol] Mass/Volume
Substrate 1 109.128 1.000 0.600 65.477 µl
461-58-5 84.082 1.000 0.607 51.000 mg
TMS-Cl (2.0M in MeCN) 108.644 1.000 0.660 330.000 µl
MeCN 41.053 0.780 15.200 800.000 µl
Product 1 229.671 1.000 0.000 0.000 µl

Keywords
Addition, Amination

Comments
Synthesis: Using this acid (HCl or TMS-Cl) catalysed method, a library of 60 compounds was synthesised. Optimisation (of solvent, acid catalyst, time, temperature and concentrations) was carried out to find the best yields and a method where the products would precipitate and be easily separated and isolated. Addition of the acid (in acetonitrile) to the reaction mixture was done automatically by the Synthesizer system.

Work-up and purification: After heating of the reaction mixture, 138 µl isopropanol was added and the mixture stirred for 10 s and heated once more, to 125°C for 30 s. After the second heating, the product hydrochloride was filtered off and washed twice with acetonitrile.

Characterisation: By LCMS, 1H and 13C NMR.

Instrument Settings
Absorption level: Normal
Pre-stirring time: 0s

References
Mayer, S.; Daigle, D. M.; Brown, E. D.; Khatri, J.; Organ, M. G. J. Comb. Chem. 2004, 5, 776-782

Analysis