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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1720971Generated: October 31, 2026

Oxalic Acid → 1-Pentanamine, N-methyl-N-2-propynyl-, ethanedioate (1:1)

https://huagongshe.com/reaction/1720971

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic AcidHCID 971—
Reactant1-BromopentaneHCID 8057—
ReactantN-methylpropyn-2-ylamineHCID 96160—
SolventEthanolHCID 702—
SolventDiethyl EtherHCID 3283—
Product1-Pentanamine, N-methyl-N-2-propynyl-, ethanedioate (1:1)HCID 307256760%

Reaction Steps

1-Bromopentane (12.1 g, 80 mmoles) and N-methylpropargylamine (11.1 g, 160mmoles) were refluxed in absolute ethanol (75 mL) for 72 h. to give (after addition to 80 mmoles of oxalic acid in ether) the title compound in 60% yield after recrystallization from methanol-ether, m.p.=101°-103° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05508311
Source datasetuspto-grants-1996_04
ORD IDord-621cb448a756477788fcfe53f27419a4
Source noteuspto-grants-1996_04