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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 63073Generated: October 29, 2026

3-Fluoropyridine-4-carboxylic acid → HCID 77104946, compound

https://huagongshe.com/reaction/63073

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Fluoropyridine-4-carboxylic acidHCID 345361—
Reactant3,4-dihydro-2H-1-benzopyran-4-ylmethanamineHCID 13362727—
ProductHCID 77104946HCID 7710494613%

Reaction Steps

The title compound was prepared in 13% yield from 1-(3,4-dihydro-2H-chromen-4-yl)methanamine and 3-fluoroisonicotinic acid according to the procedure for the preparation of Example 53. 1H NMR (400 MHz, DMSO-d6): δ 8.33 (s, 1H), 7.78 (d, 1H, J=5.0 Hz), 7.74 (br s, 1H), 7.50 (d, 1H, J=5.0 Hz), 7.23 (d, 1H, J=7.4 Hz), 7.04 (t, 1H, J=7.1 Hz), 6.78 (t, 1H, J=7.3 Hz), 6.69 (d, 1H, J=8.0 Hz), 4.06-4.17 (m, 2H), 3.59-3.65 (m, 1H), 3.41-3.47 (m, 1H), 3.04-3.09 (m, 1H), 1.79-1.96 (m, 2H). [M+H] calc'd for C16H16N2O3, 285. found 285.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09447045B2
Source datasetuspto-grants-2016_09
ORD IDord-67c28d40f51a4c44a923222b2d266c4c
Source noteuspto-grants-2016_09