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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1681218Generated: November 3, 2026

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

https://huagongshe.com/reaction/1681218

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, 160 mmoles) 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 numberUS05169868
Source datasetuspto-grants-1992_12
ORD IDord-d320a476430248cf959d798267ccf8fe
Source noteuspto-grants-1992_12