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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 386677Generated: October 30, 2026

Hydrochloric Acid → HCID 66845218, compound

https://huagongshe.com/reaction/386677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium BromideHCID 253877—
ReactantHCID 66845791HCID 66845791—
SolventChloroform methanolHCID 21584188—
ProductHCID 66845218HCID 6684521854%

Reaction Steps

Prepared analogously to Example 5c) starting from 2-(4-methoxyphenyl)-3-benzyloxy-6-acetamido-4H-1-benzopyran-4-one. Yield: 54%; TLC (9/1 Chloroform/Methanol) Rf: 0.60; Elem. anal. C23H19NO4*HCl; theory C, 67.40; H, 4.92; N, 3.42. found C, 64.24; H, 4.73; N, 3.20. IR (KBr): 3433, 2833, 2592, 1629, 1498, 1167 cm−1, 1H-NMR (d6-DMSO): 8.0 (m, 2H), 7.73 (m, 2H), 7.52 (dd, 1H), 7.37-7.22 (m, 5H), 7.10 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08372866B2
Source datasetuspto-grants-2013_02
ORD IDord-959372577c644e83871e7a227d001227
Source noteuspto-grants-2013_02