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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 447534Generated: October 30, 2026

Hydrochloric Acid → HCID 53408381, compound

https://huagongshe.com/reaction/447534

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBromocresol GreenHCID 6451—
ReactantSodium HydroxideHCID 14798—
ReactantSodium borohydrideHCID 4311764—
ReactantHCID 86658834HCID 86658834—
SolventAcetic AcidHCID 176—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 53408381HCID 5340838199%

Reaction Steps

To a solution of 6-bromo-2-methylisoquinolinium trifluoromethanesulfonate (371 mg, 1 mmol) in methanol (10 mL) was added bromocresol green indicator. Sodium borohydride (93 mg, 2.5 mmol) was added and the reaction was stirred at rt. HCl in acetic acid (1M) was added periodically to maintain a yellow color. After 1 h, water (50 mL) was added and the solution was basified with NaOH (1M), extracted into CH2Cl2 (100 mL), dried over MgSO4 and concentrated to give the title compound as a white solid (200 mg, 99%). 1H NMR (400 MHz, CDCl3) δ 7.29-7.17 (m, 2H), 6.88 (d, J=8.0 Hz, 1H), 3.51 (s, 2H), 2.93-2.82 (m, 2H), 2.65 (t, J=5.8 Hz, 2H), 2.45 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08481525B2
Source datasetuspto-grants-2013_07
ORD IDord-ddf6718cff744204a214d0f6720fe465
Source noteuspto-grants-2013_07