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CAS No. : | 34328-61-5 | MDL No. : | MFCD00011735 |
Formula : | C7H4ClFO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | GVORVQPNNSASDM-UHFFFAOYSA-N |
M.W : | 158.56 | Pubchem ID : | 593866 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In ethanol; | EXAMPLE 44 10-(3-chloro-4-fluorophenyl)-3,4,6,10-tetrahydro-2H-pyrano [3,4-b][1,6]naphthyridine-1,9(5H,8H)-dione A mixture of the product from Example 11C (0.023 g, 0.2 mmol), <strong>[50607-30-2]piperidine-2,4-dione</strong> (Nakagawa, S., Heterocycles (1979), 13, 477-495) (0.23 g, 0.2 mmol), 3-chloro-4-fluorobenzaldehyde (0.032 g, 0.2 mmol) and ethanol (2 mL) was heated to 80° C. for 60 hours and cooled to ambient temperature. The resulting solid was collected by filtration, washed with ethanol and dried under vacuum to provide the title compound. MS (APCI(+)) m/z 349 (M+H)+; MS (APCI(-)) m/z 347 (M-H)-; 1H NMR (DMSO-d6) delta 2.34-2.57 (m, 2H), 3.13-3.28 (m, 2H), 4.00 (s, 2H), 4.45 (AB q, 2H), 4.96 (s, 1H), 7.08 (d, 1H), 7.17 (ddd, 1H), 7.26 (t, 1H), 7.28 (dd, 1H), 9.55 (s, 1H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With trifluoroacetic acid; | Step A: To a stirred solution of <strong>[39745-40-9]3-amino-2-chloro-6-methylpyridine</strong> (1 g, 7 mmol), 4-fluoro-3-chlorobenzaldehyde (0.98 mL, 8.4 mmol) and EtOAc (11 mL) at RT under argon was added TFA (1.1 mL, 14 mmol). The solution was stirred 5 min, then NaBH(OAc)3 (1.93 g, 9.1 mmol) was added in two portions. LC/MS indicates the reaction is complete after about 60 min. The reaction was diluted with EtOAc and treated with aqueous 10% NaOH (about 14 mL), until the pH was about 8. The aqueous layer was separated and extracted with EtOAc (2*). The combined organic layers were washed with brine, dried over Na2SO4 and concentrated to give the crude product as a dark thick oil. The material was triturated with MeOH and the solid dried under vacuum to give 2-chloro-N-(3-chloro-4-fluorobenzyl)pyridin-3-amine, 863 mg (43%) of the product as a light tan solid. |