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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1490499Generated: October 30, 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/1490499

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Methyl-2,3-dihydro-1H-indoleHCID 55830—
ReagentPinacolHCID 6425—
ReagentTriethylamineHCID 8471—
ReagentNorbornadieneHCID 8473—
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 2422959130%

Reaction Conditions

Temperature25 °C

Reaction Steps

Prepared from 1-methylindoline (1j, 13.5 mg, 0.100 mmol, 1.00 equiv), catBH (24.0 mg, 0.200 mmol, 2.00 equiv), norbornadiene (9.2 mg, 0.10 mmol, 1.00 equiv) and B(C6F5)3 (5.1 mg, 0.010 mmol, 0.10 equiv) according to GP 3. The title compound was purified by flash column chromatography using cyclohexane/EtOAc/Et3N (30/1/1) as eluent to afford 3j (7.5 mg, 30%) as a white solid.

Provenance & Evidence

DOI10.1002/anie.201611536
Source datasetBorylation dataset from Roche
ORD IDord-a69ae003920743bcb48cb3ac16966ce5
Source noteBorylation dataset from Roche