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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 372234Generated: October 26, 2026

Ammonium Chloride → HCID 20328821, compound

https://huagongshe.com/reaction/372234

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant2-ChlorothioxanthoneHCID 618848—
ReactantMagnesiumHCID 5462224—
Reactant3-ChloroquinolizidineHCID 20328834—
CatalystEthyl BromideHCID 6332—
SolventTetrahydrofuranHCID 8028—
ProductHCID 20328821HCID 20328821—

Reaction Conditions

Temperature0 °C

Reaction Steps

Several drops of ethyl bromide were added to a stirred suspension of 1.29 g. (0.054 g.-atom) of magnesium turnings in 5 ml. of tetrahydrofuran under a nitrogen atmosphere. After the reaction began 9.3 g. (0.054 mole) of 3-chloroquinolizidine in 100 ml. of tetrahydrofuran was added. After the addition was completed the mixture was stirred and refluxed for one hour and cooled to 0° C. To the chilled suspension of the Grignard reagent was added a solution of 12.55 g. (0.051 mole) of 2-chloro-9-thioxanthone in 300 ml. of tetrahydrofuran. The solution was stirred at 24° C. for two hours, poured into aqueous ammonium chloride and extracted with ether. The extracts were washed with water, dried and evaporated to give 2-chloro-9-(3-quinolizidinyl)-9-hydroxythioxanthene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04089961
Source datasetuspto-grants-1978_05
ORD IDord-7e97f4f7917a405781fe469772573c1d
Source noteuspto-grants-1978_05