1364804-69-2

Upstream product

• 1340480-82-1 ethyl 6-benzyl-2-((triphenylphosphoranylidene)amino)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate 
• 1340480-83-2 C₂₄H₂₃N₃O₂S 
• 1364805-60-6 C₂₈H₃₄N₄O₂S 

Relevant academic research and scientific papers

Facile synthesis of thieno[2,3-d]pyrimidine derivatives using inorganic base catalysis

Potassium carbonate as inorganic base catalyst was used to develop an efficient synthetic procedure for the preparation of thieno[2,3-d]pyrimidine derivatives. The molecular structure of the newly synthesized compounds were confirmed by NMR spectral data.

Efficient synthesis of 7-benzyl-5,6,7,8-tetrahydropyrido[4′,3′: 4,5]thieno [2,3-d]pyrimidin-4(3H)-ones via aza-Wittig reaction

7-benzyl-5,6,7,8-tetrahydropyrido[4′,3′:4,5]thieno[2,3-d] pyrimidin-4(3H)-ones were synthesized by base catalytic reactions of nucleophilic reagents (aliphatic amines, alcohols or phenols) with carbodiimides 4, which were obtained from the aza-Wittig reaction of iminophosphoranes 3 with aromatic isocyanates.