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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1506356Generated: October 31, 2026

Morpholine → HCID 67168817, compound

https://huagongshe.com/reaction/1506356

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMorpholineHCID 8083—
Reactant6-Bromo-1-tetraloneHCID 10105069—
CatalystTitanium TetrachlorideHCID 24193—
SolventTolueneHCID 1140—
ProductHCID 67168817HCID 6716881793.5%

Reaction Conditions

Temperature0 °C

Reaction Steps

To 6-bromo-3,4-dihydronaphthalen-1(2H)-one (0.475 g, 2.110 mmol) in toluene (5 mL) was added morpholine (0.735 mL, 8.44 mmol) at room temperature. The reaction mixture was cooled to 0° C. and titanium tetrachloride (1.0 M in toluene) (1.161 mL, 1.161 mmol) was added over a period of 3 min. The brown heterogeneous reaction mixture was allowed to come to room temperature and stirred for 20 h. The reaction mixture was diluted with 5 mL of anhydrous toluene and filtered over a thin pad of CELITE®. The filter pad was washed with addition anhydrous toluene (2×10 mL). The pale yellow filtrate was concentrated under reduced pressure to yield 4-(6-bromo-3,4-dihydronaphthalen-1-yl)morpholine (0.580 g, 1.972 mmol, 93% yield) as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09216972B2
Source datasetuspto-grants-2015_12
ORD IDord-081a16e26c0a4c999bb2892137d392b8
Source noteuspto-grants-2015_12