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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 918565Generated: October 30, 2026

Benzaldehyde → HCID 86733767, compound

https://huagongshe.com/reaction/918565

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 numberUS03971797
Source datasetuspto-grants-1976_07
ORD IDord-b8c1d02538654848a7effc2ae83de1f8
Source noteuspto-grants-1976_07