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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1274074Generated: October 31, 2026

2-Aminobenzyl alcohol → HCID 22120151, compound

https://huagongshe.com/reaction/1274074

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Aminobenzyl alcoholHCID 21439—
Reactant3-ThiophenecarboxaldehydeHCID 68135—
SolventIsopropanolHCID 3776—
ProductHCID 22120151HCID 2212015181.4%

Reaction Steps

A mixture of 2-aminobenzyl alcohol (0.1218 mol), 3-thiophenecarboxaldehyde (0.1218 mol) and molecular sieves (3 Å) in 2-propanol (150 ml) was stirred overnight at room temperature. The crude reaction mixture was filtered, the residue was treated with CH2Cl2, and the mixture was filtered again. The solvent was evaporated, yielding 21.53 g (81%) of (±)-1,4-dihydro-2-(3-thienyl)-2H-3,1-benzoxazine (interm. 3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06156747
Source datasetuspto-grants-2000_12
ORD IDord-ffdb43bd42eb4353827be728eb24d032
Source noteuspto-grants-2000_12