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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2058864Generated: October 31, 2026

Methylamine → HCID 20548484, compound

https://huagongshe.com/reaction/2058864

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
ReactantDimethylformamide dimethyl acetalHCID 78373—
ReactantHCID 20548509HCID 20548509—
ProductHCID 20548484HCID 20548484—

Reaction Steps

A 1.5 g. portion of 1-(3-fluorophenyl)-2,4-pentanedione was reacted with 15 ml. of N,N-dimethylformamide dimethyl acetal, and then with 10 ml. of 40% aqueous methylamine as described in Example 4. The reaction mixture was then evaporated under vacuum to dryness, and the crude product was chromatographed on a silica gel column with ethyl acetate to obtain 1 g. of the desired product, which was identified by nmr analysis in CDCl3, showing peaks at δ8.1-8.2 (m, 1H, pyridine); 6.9-7.6 (m, 5H, phenyl and 1 pyridine); 3.80 (s, 3H, N--CH3); 2.83 (s, 3H, COCH3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04319916
Source datasetuspto-grants-1982_03
ORD IDord-fffe1f62765d4b39acb0aed41112ddef
Source noteuspto-grants-1982_03