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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 905216Generated: October 30, 2026

Propargyl bromide → HCID 12958928, compound

https://huagongshe.com/reaction/905216

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPropargyl bromideHCID 7842—
ReactantTriethylamineHCID 8471—
Reactant5-Chloro-2(1H)-pyrimidinethioneHCID 7140345—
SolventDichloromethaneHCID 6344—
ProductHCID 12958928HCID 1295892887%

Reaction Steps

A mixture of 5-chloropyrimidine-2-thione (5 mmol) and triethylamine (5 mmol) was stirred together in dichloromethane (40 ml) for 5 min before propargyl bromide (6 mmol) was added. The mixture was stirred at room temperature for 1 h before the solvent was evaporated. The residue was triturated with water (20 ml), and the solid recrystallized from methanol; yield 87%, m.p. 66° C. 1H NMR (CDCl3): δ2.16 (HC≡, t, J 2 Hz), 3.88 (CH2, d, J 2 Hz), 8.80 (H-4, H-6). IR (KBr): 3300 Cm-1 (HC≡).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04423047
Source datasetuspto-grants-1983_12
ORD IDord-e981ae306b684c6ca225e369280d7c97
Source noteuspto-grants-1983_12