Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2355064Generated: October 31, 2026

1,8-Diazabicyclo(5.4.0)undec-7-ene → HCID 68453166, compound

https://huagongshe.com/reaction/2355064

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
ReactantMethyl 2-bromothiazole-5-carboxylateHCID 2773502—
Reactant(s)-3-(2-(Trifluoromethyl)phenoxy)pyrrolidineHCID 26191991—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 68453166HCID 68453166—

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of methyl 2-bromo-1,3-thiazole-5-carboxylate (2.101 g, 9.46 mmol), (3S)-3-[2-(trifluoromethyl)phenoxy]pyrrolidine (2 g, 8.7 mmol) and DBU (2.7 mL, 17.9 mmol) in dioxane (30 mL) was heated at 80° C. for 24 h. After cooling, the mixture was diluted with water and extracted twice with EtOAc. The combined EtOAc extracts were washed with water, dried and concentrated. Combi-Flash chromatography (120 g, 40-80% EtOAc in hexanes in 20 min, 70 mL/min, 25 mL/fraction) gave the title compound as a white solid. 1H NMR (400 MHz, acetone-d6): δ 7.84 (s, 1 H), 7.67 (m, 2 H), 7.41 (d, 1 H), 7.17 (t, 1 H), 5.51 (s, 1 H), 3.95 (m, 1 H), 3.80-3.65 (m, 6 H), 2.60-2.46 (m, 2 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07754745B2
Source datasetuspto-grants-2010_07
ORD IDord-fcf8e8e5c1394773b6c9886a5ed30145
Source noteuspto-grants-2010_07