Di‐tert‐Butyl Acetylenedicarboxylate and Its Cyclotrimerization

1979/02/01 by Wolfgang Sucrow, Fritz Lübbe
Chemistry · Pharmacology, Toxicology and Pharmaceutics · #Fluorine in Organic Chemistry #Organic Chemistry Cycloaddition Reactions #Synthesis and Characterization of Pyrroles

paper · doi:10.1002/anie.197901491

openalex publication_date 1979/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/27

Abstract

Di‐ tert —butylacetylenedicarboxylate (1) —surprisingly not synthesized before—is remarkable from a chemical standpoint. Its cyclotrimerization shows that the tert ‐butyl groups do not exert strong steric hindrance. Ready cleavage (without base) of the esters obtained from (1) is of advantage. equation image

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