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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1252345Generated: October 27, 2026

Ammonium Hydroxide → 2,2-Dimethyl-2,3-dihydro-1-benzofuran-5-sulfonamide

https://huagongshe.com/reaction/1252345

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium HydroxideHCID 14923—
Reactant2,2-Dimethyl-2,3-dihydro-1-benzofuran-5-sulfonyl chlorideHCID 15611038—
SolventTetrahydrofuranHCID 8028—
Product2,2-Dimethyl-2,3-dihydro-1-benzofuran-5-sulfonamideHCID 15611039—

Reaction Steps

In a manner similar to Step B of Example 9, the reaction of 9.0 g (0.036 mole) of 5-chlorosulfonyl-2,3-dihydro-2,2-dimethylbenzofuran with 60 mL of an aqueous 29% ammonium hydroxide solution in 70 mL of tetrahydrofuran produced 8.0 g of 5-aminosulfonyl-2,3-dihydro-2,2-dimethylbenzofuran as a solid (mp 157°-160° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04743291
Source datasetuspto-grants-1988_05
ORD IDord-5ac40133dcb2410cb21019c66271bbc9
Source noteuspto-grants-1988_05