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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 409973Generated: October 31, 2026

Diethyl Ether → HCID 44229901, compound

https://huagongshe.com/reaction/409973

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantTrifluoroacetic acidHCID 6422—
ReactantHCID 58236588HCID 58236588—
SolventDichloromethaneHCID 6344—
ProductHCID 44229901HCID 4422990182.6%

Reaction Steps

To 338 (0.19 g, 0.31 mmol) in dichloromethane (40 mL) was added TFA (3 mL). The solution was stirred for 6 h, then concentrated. The residue was partitioned between 98:2 dichloromethane/methanol mixture and 1M NaOH(aq), washed with brine, dried over MgSO4, filtered and concentrated. The resulting oil was triturated with diethyl ether and ethyl acetate providing 339 (0.13 g, 82% yield). 1H NMR (400 MHz, DMSO-d6) δ (ppm): 1H: 8.80 (s, 1H); 8.57 (s, 1H); 8.51 (d, J=5.5, 1H); 8.31 (s, 1H); 8.23 (d, J=8.0, 1H); 7.89 (dd, J=8.0, 1.5, 1H); 7.73 (dd, J=13.5, 2.2, 1H); 7.38 (t, J=9.0, 1H); 7.20 (d, J=8.2, 1H); 6.66-6.62 (m, 2H); 3.78 (s, 2H); 3.41 (t, J=5.7, 2H); 3.24 (s, 3H); 2.65 (d, J=5.7, 2H); 2.57-2.51 (m, 1H); 0.66-0.62 (m, 2H); 0.44-0.41 (m, 2H). MS (m/z): 508.3 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08759522B2
Source datasetuspto-grants-2014_06
ORD IDord-92889c828a0f4378b43a36a88152196c
Source noteuspto-grants-2014_06