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5-(1-Propynyl)-2-thiophenecarbaldehyde synthesis

3synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 2 steps
1: bromine; tetrachloroethane; KOH-solution
2: phosphoryl chloride

References:

Schulte;Jantos [Archiv der Pharmazie,1959,vol. 292,p. 536,539]