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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 273066Generated: October 31, 2026

Acetic Acid → HCID 59837534, compound

https://huagongshe.com/reaction/273066

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantMethylhydrazineHCID 6061—
ReactantDichloromethaneHCID 6344—
ReactantHCID 68578480HCID 68578480—
SolventWaterHCID 962—
SolventSodium CarbonateHCID 10340—
ProductHCID 59837534HCID 5983753420%

Reaction Conditions

Temperature100 °C

Reaction Steps

N-[(dimethylamino)methylene]-4-[4-(3-pyrrolidin-1-ylpropoxy)phenyl]tetrahydro-2H-pyran-4-carboxamide (0.34 g, 0.88 mmol), methyl hydrazine (0.116 mL, 2.19 mmol) and acetic acid (1 mL) were combined and heated at 100° C. for 2 hours. The reaction mixture was diluted with water (10 mL), solid sodium carbonate was added until the mixture was pH9. Dichloromethane (2×50 mL) was used to extract. The combined organics were dried over sodium sulphate, filtered and concentrated in vacuo to provide a yellow oil. This was purified by flash chromatography on silica gel eluting with dichloromethane:methanol:ammonia (96:4:0.4 to 90:10:1) to produce the title compound (0.065 g, 20%) as a white solid. 1H NMR (400 MHz, CDCl3) δ 1.83-1.93 (m, 4H), 2.05-2.16 (m, 2H), 2.30 (m, 2H), 2.48 (m, 2H), 2.60-2.85 (m, 6H), 3.37 (s, 3H), 3.80 (m, 2H), 3.90 (m, 2H), 4.0 (t, 2H), 6.85 (d, 2H), 7.07 (d, 2H), 7.88 (s, 1H). HRMS ESI+ m/z 371.2434 [MH]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456164B2
Source datasetuspto-grants-2008_11
ORD IDord-b79c1b31c56444eca77ac1f332d02715
Source noteuspto-grants-2008_11