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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1896077Generated: November 1, 2026

Sodium Hydroxide → HCID 67377020, compound

https://huagongshe.com/reaction/1896077

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67377437HCID 67377437—
SolventHydrochloric AcidHCID 313—
SolventMethanolHCID 887—
ProductHCID 67377020HCID 6737702099.3%

Reaction Conditions

Temperature0 °C

Reaction Steps

As shown in step 1-iv of Scheme 1, Compound 1004 (5.0 g, 13.9 mmol) was taken up in 15 mL of methanol and 30 mL of 6M HCl. After refluxing for 10 hrs, the mixture was cooled to 0° C. and the pH adjusted to 8 with 6M sodium hydroxide. The resulting white precipitate was collected by vacuum filtration, washed well with water, and dried at 55° C. under vacuum for 16 hours to afford 3-(1-(2,3-difluoro-4-methoxyphenyl)-1H-tetrazol-5-yl)pyridin-2-amine (4.2 g): ESMS (M+1)=305.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518938B2
Source datasetuspto-grants-2013_08
ORD IDord-292d390bd1ec4d95b6133cd8c7624686
Source noteuspto-grants-2013_08