Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 873822Generated: October 25, 2026

Sulfuric Acid → HCID 178427896, compound

https://huagongshe.com/reaction/873822

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantBoric AcidHCID 7628—
ReactantAmmonium HydroxideHCID 14923—
Reactant5-Iodo-3-methylpyridin-2-amineHCID 959586—
ReactantSodium NitriteHCID 23668193—
ProductHCID 178427896HCID 17842789683%

Reaction Conditions

Temperature60 °C

Reaction Steps

Sodium nitrite (0.708 g, 10.25 mmol) was added to a mixture of 5-iodo-3-methyl-pyridin-2-ylamine (2 g, 8.55 mmol) and H2SO4 (12 mL) at 0° C. The reaction mixture was stirred 15 min at 60° C., allowed to cool down, and poured onto crushed ice. Boric acid (1.057 g, 17.09 mmol) was added and the solution was quickly heated to 100° C. The reaction mixture was cooled down and neutralized with a saturated aq. NH4OH solution. The suspension was filtered to afford the crude title product (1.67 g, 7.11 mmol, 83% yield) as a brown solid. tR: 2.85 min (HPLC 1); tR: 0.62 min (LC-MS 2); ESI-MS: 236 [M+H]+ (LC-MS 2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975417B2
Source datasetuspto-grants-2015_03
ORD IDord-e713e7d22ab04eac82c9706e1495556b
Source noteuspto-grants-2015_03