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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 420189Generated: October 27, 2026

Water → HCID 178512749, compound

https://huagongshe.com/reaction/420189

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantN,N-Diethyl-2-propanamineHCID 521913—
ReactantPyrazole-1-carboxamidine monohydrochlorideHCID 2734672—
ReactantC-(6-benzenesulfonyl-1,2,3,4-tetrahydro-naphthalen-1-yl)-methylamineHCID 11652370—
SolventDimethylformamideHCID 6228—
ProductHCID 178512749HCID 17851274933.1%

Reaction Conditions

Temperature100 °C

Reaction Steps

C-(6-Benzenesulfonyl-1,2,3,4-tetrahydro-naphthalen-1-yl)-methylamine (1.0 g, 3.5 mmol), 1H-pyrazol-1-carboxamidine hydrochloride (0.5 g, 3.5 mmol) and 1.2 mL of diethyl isopropylamine (7.0 mmol) were dissolved in 10 mL of DMF. The reaction mixture was heated to 100° C. for three hours and then cooled and diluted by addition of 75 mL of water. The aqueous mixture was extracted twice with 100 mL of EtOAc, and the combined organic layers were dried over MgSO4. The solvent was removed under reduced pressure, and the resulting oil was purified by medium pressure chromatography (silica gel, MeOH/CHCl3/NH4OH 10:89:1) to yield 0.4 g (1.16 mmol, 33%) of N-(6-benzenesulfonyl-1,2,3,4-tetrahydro-naphthalen-1-ylmethyl)-guanidine, MS: 344 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08093424B2
Source datasetuspto-grants-2012_01
ORD IDord-b8cb50e5e6f8492887089d7f74d0a4fc
Source noteuspto-grants-2012_01