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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 643890Generated: October 25, 2026

4-Cyano-1-butyne → (E)-5-[6-Hydroxy-7-(1,1,4-trioxo-1,2,5-thiadiazolidin-2-yl)-naphthalen-2-yl]-pent-4-enenitrile

https://huagongshe.com/reaction/643890

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Cyano-1-butyneHCID 140560—
Reactant5-(7-Bromo-3-hydroxynaphthalen-2-yl)-1,1-dioxo-1,2,5-thiadiazolidin-3-oneHCID 17751761—
Product(E)-5-[6-Hydroxy-7-(1,1,4-trioxo-1,2,5-thiadiazolidin-2-yl)-naphthalen-2-yl]-pent-4-enenitrileHCID 17751395—

Reaction Steps

The title compound is prepared analogously to Example 8, step A, beginning with pent-4-ynenitrile and 5-(7-bromo-3-hydroxynaphthalen-2-yl)-1,1-dioxo-1,2,5-thiadiazolidin-3-one (Example 3, step E): Retention time=0.91 min (Method A); (M−H)−=356.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07700633B2
Source datasetuspto-grants-2010_04
ORD IDord-9b367292da764bd19a1406e1e66a2a4e
Source noteuspto-grants-2010_04