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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 602758Generated: November 2, 2026

Sodium Bicarbonate → (RS,SR)-2-(1-benzenesulfonyl-2-methoxy-1-methyl-ethyl)-6-chloro-2,3,4,9-tetrahydro-1H-carbazole

https://huagongshe.com/reaction/602758

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium BicarbonateHCID 516892—
Reactant(RS,SR)-2-(1-benzenesulfonyl-2-methoxy-1-methyl-ethyl)-6-chloro-9-methoxymethyl-2,3,4,9-tetrahydro-1H-carbazoleHCID 67266821—
CatalystHydrochloric AcidHCID 313—
SolventMeOH tetrahydrofuranHCID 21899815—
Product(RS,SR)-2-(1-benzenesulfonyl-2-methoxy-1-methyl-ethyl)-6-chloro-2,3,4,9-tetrahydro-1H-carbazoleHCID 1138454213.2%

Reaction Conditions

Temperature55 °C

Reaction Steps

95 mg (0.20 mmol) of (RS,SR)-2-(1-benzenesulfonyl-2-methoxy-1-methyl-ethyl)-6-chloro-9-methoxymethyl-2,3,4,9-tetrahydro-1H-carbazole were dissolved in 8 mL of MeOH/THF 1:1, and 5 drops of HCl 12M were added. The temperature was raised to 55° C. and the solution was stirred for 6 hours. By adding 2M NaHCO3 the solution was neutralized to pH=7, and the mixture was extracted with EtOAc. Column chromatography on silica gel with heptane/EtOAc 2:1 yielded 11 mg (13%) of (RS,SR)-2-(1-benzenesulfonyl-2-methoxy-1-methyl-ethyl)-6-chloro-2,3,4,9-tetrahydro-1H-carbazole as a white solid, MS: 418 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07906546B2
Source datasetuspto-grants-2011_03
ORD IDord-d9496b8e41384f9c84aace63d49efad0
Source noteuspto-grants-2011_03