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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1778419Generated: October 31, 2026

1H-Pyrazolo[3,4-d]pyrimidin-4-amine → HCID 178508725, compound

https://huagongshe.com/reaction/1778419

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-Pyrazolo[3,4-d]pyrimidin-4-amineHCID 75420—
ReactantN-IodosuccinimideHCID 120273—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 178508725HCID 17850872551.8%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 1H-pyrazolo[3,4-d]pyrimidin-4-amine (150 g, 1.11 mol, 1.00 equiv) and N-iodo-succinimide (375 g, 1.67 mol, 1.58 equiv) in N,N-dimethylformamide (2.5 L) was stirred at 80° C. for 5 h. The reaction mixture was cooled to room temperature and then diluted with 10 L of water. The solid was collected by filtration, washed with 2×1 L of saturated aqueous sodium sulfite, and dried under vacuum to give 150 g of 3-iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09266895B2
Source datasetuspto-grants-2016_02
ORD IDord-b4c35b8d5d534b03b013ecc7740a5c46
Source noteuspto-grants-2016_02