The photography industry has employed pyrazolidinediones as the main component in both pigments as well as thermal-based printing materials

February 22, 2024

• Title:       

  The photography industry has employed pyrazolidinediones as the main component in both pigments as  well as thermal-based printing materials

• Image Source:

  Facile scalable reduction of N-acylated dihydropyrazoles

• Mark:

  Scheme 1

• Associated context:

  The significance of the pyrazolidine heterocycle is evidenced  by its presence as a structural subunit in a variety of compounds  frequently utilized in both the photography and pharmaceutical  industries.^1-7 The photography industry has employed pyrazolidinediones (3) as the main component in both pigments as  well as thermal-based printing materials (Scheme 1).1 Further-  more, pyrazolidine compounds have been converted into azaproline amino acids (4), which have been studied upon  incorporation into traditional peptides as well as small molecule  peptidomimetics (5).^2-6