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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1439019Generated: October 31, 2026

Benzaldehyde → HCID 86733767, compound

https://huagongshe.com/reaction/1439019

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantHydrochloric AcidHCID 313—
ReactantPyrithioxineHCID 14190—
SolventDiethyl EtherHCID 3283—
ProductHCID 86733767HCID 86733767—

Reaction Steps

A mixture of 0.01 moles of 5,5'-(dithiodimethylene)bis[3-hydroxy-4-hydroxymethyl-2-methylpyridine] and 100 ml. of benzaldehyde was saturated with hydrogen chloride gas at 0°-5° and then stirred at this temperature for 4 hours. At this time 800 ml. of ether were added and the resulting precipitate was separated by filtration. This solid was then added to a well stirred mixture of 200 ml. chloroform and 200 ml. of water containing 20 gm. of sodium carbonate. After 15 minutes the chloroform layer was removed, dried, and concentrated to give an oil which gradually solidified. This solid was filtered with the aid of a small amount of ether to give 5,5'-(dithiodimethylene)bis[8-methyl-2-phenyl-4H-m-dioxino[4,5-c]pyridine].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04057637
Source datasetuspto-grants-1977_11
ORD IDord-1ab33108ee7646649fbc3dbf44a3bcc4
Source noteuspto-grants-1977_11