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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1112476Generated: November 2, 2026

1-Bromohexadecane → HCID 20396833, compound

https://huagongshe.com/reaction/1112476

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-BromohexadecaneHCID 8213—
ReactantSodium CarbonateHCID 10340—
Reactant3-Ethyl-2-methyl-6,7-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidineHCID 20396840—
SolventAcetonitrileHCID 6342—
ProductHCID 20396833HCID 2039683318.9%

Reaction Conditions

Temperature0 °C

Reaction Steps

3-Ethyl-2-methyl-6,7-dihydro-[5H]-thiazolo[3,2-a]pyrimidine (1.8 g., 0.01 mole) (prepared by basification of the hydrobromide salt with sodium carbonate) and cetyl bromide (3.3 g., 0.011 mole) were refluxed in acetonitrile solution for 16 hours. The solvent was evaporated and the residual oil solidified by stirring under dry ether at 0° C. Recrystallization from a mixture of acetonitrile and ether gave 8-cetyl-3-ethyl-2-methyl-6,7-dihydro[5H]thiazolo[3,2-a]pyrimidinium bromide, (0.92 g., 20%), m.p. 63°-66° (Found: C, 61.4; H, 9.6; N, 5.6. C25H47N2SBr requires C, 61.6; H, 9.7; N, 5.7%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04122272
Source datasetuspto-grants-1978_10
ORD IDord-8b6a638bc16b480b8705a9eb4bd1b3bc
Source noteuspto-grants-1978_10