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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 236789Generated: October 30, 2026

Ammonia → HCID 15700642, compound

https://huagongshe.com/reaction/236789

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantFormic AcidHCID 284—
ReactantFormaldehydeHCID 712—
Reactant1-(2-Phenyl-1-benzothiophen-3-yl)piperazineHCID 15700641—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 15700642HCID 15700642—

Reaction Steps

A mixture of 7.0 g (24 mmole) of 3-(piperazino)-2-phenyl-benzo(b)thiophene, 3.5 milliliters of formalin at 35% (41 mmole) and 3.5 milliliters of formic acid at 98-100% (92 mmole) is refluxed for 1 hour. After cooling, it is poured into water, made alkaline with ammonia and extracted with CH2Cl2. By evaporating the organic phase dried over K2CO3, 7.2 g (98% of theory) of 3-(4'-methylpiperazino)-2-phenyl-benzo(b)thiophene are obtained: beige crystals, mp 118°-120° (methanol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04157399
Source datasetuspto-grants-1979_06
ORD IDord-2d75ac71e3c342b097614e98244cb547
Source noteuspto-grants-1979_06