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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 20629Generated: October 26, 2026

3,5-Dichloro-4-methylpyridine → 8-(Cyclopentyloxy)-4-[(3,5-dichloropyridin-4-yl)methyl]-7-methoxy-2H-chromen-2-one

https://huagongshe.com/reaction/20629

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,5-Dichloro-4-methylpyridineHCID 10953827—
Reactant8-(cyclopentyloxy)-7-methoxy-2-oxo-2H-chromen-4-yl 4-methylbenzenesulfonateHCID 86618132—
Product8-(Cyclopentyloxy)-4-[(3,5-dichloropyridin-4-yl)methyl]-7-methoxy-2H-chromen-2-oneHCID 24849379—

Reaction Steps

The title compound was prepared from 3,5-dichloro-4-methylpyridine and 8-(cyclopentyloxy)-7-methoxy-2-oxo-2H-chromen-4-yl 4-methylbenzenesulfonate following the procedure outlined in Example 1, Step 4. 1H NMR (400 MHz, DMSO-d6): δ 8.73 (s, 2H), 7.77 (d, 1H), 7.19 (d, 1H), 5.32 (s, 1H), 4.83 (m, 1H), 4.45 (s, 2H), 3.92 (s, 3H), 1.80-1.00 (m, 8H); MS (ESI): 419.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745646B2
Source datasetuspto-grants-2010_06
ORD IDord-81ff9836458f409abba57bd2e923fa06
Source noteuspto-grants-2010_06