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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1490498Generated: November 1, 2026

1-Methyl-2,3-dihydro-1H-indole → 1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-indole

https://huagongshe.com/reaction/1490498

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Methyl-2,3-dihydro-1H-indoleHCID 55830—
ReagentPinacolHCID 6425—
ReagentTriethylamineHCID 8471—
ReagentCatecholboraneHCID 67506—
CatalystTris(pentafluorophenyl)boraneHCID 582056—
SolventTolueneHCID 1140—
Product1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-indoleHCID 2422959132%

Reaction Conditions

Temperature100 °C

Reaction Steps

Prepared from 1-methylindoline (1j, 26.6 mg, 0.200 mmol, 1.00 equiv) and catBH (36.0 mg, 0.300 mmol, 1.50 equiv) at 100 o C according to GP 1. The title compound was purified by flash column chromatography using cyclohexane/EtOAc/Et3N (30/1/1) as eluent to afford 3j (16.6 mg, 32%) as a white solid.

Provenance & Evidence

DOI10.1002/anie.201611536
Source datasetBorylation dataset from Roche
ORD IDord-5720a54c12234aecb4e32125f1ec4073
Source noteBorylation dataset from Roche