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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1992888Generated: October 25, 2026

Methanamine, N-methoxy-, hydrochloride (1:1) → N-Methyl-N,4-bis(methyloxy)-2-(4-methyl-1-pentyn-1-yl)benzamide

https://huagongshe.com/reaction/1992888

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanamine, N-methoxy-, hydrochloride (1:1)HCID 81138—
ReactantMethyl 4-(methyloxy)-2-(4-methyl-1-pentyn-1-yl)benzoateHCID 68534814—
ReactantButyllithiumHCID 178418339—
ProductN-Methyl-N,4-bis(methyloxy)-2-(4-methyl-1-pentyn-1-yl)benzamideHCID 8608718885%

Reaction Steps

Treatment of methyl 4-(methyloxy)-2-(4-methyl-1-pentyn-1-yl)benzoate (102) (0.76 g, 3.09 mmol) with a mixture of N,O-dimethylhydroxylamine hydrochloride and nBuLi gave 0.72 g (85%) of the title compound (103) as a yellow oil. 1H NMR (400 MHz, CDCl3): δ 1.02 (d, J=6.6 Hz, 6H), 1.80-1.95 (m, 1H), 2.28 (d, J=6.6 Hz, 2H), 3.28 (br s, 3H), 3.59 (br s, 3H), 3.80 (s, 3H), 6.84 (dd, J1=8.6 Hz, J2=2.5 Hz, 1H), 6.94 (d, J=2.6 Hz, 1H), 7.24 (d, J=8.6 Hz, 1H). LCMS (ESI): m/z 276 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07649093B2
Source datasetuspto-grants-2010_01
ORD IDord-14add0c85932412ea9d51d57a948ea50
Source noteuspto-grants-2010_01