Microwave-assisted synthesis of new pyrimido[4′,5′:4,5]thiazolo[3,2-a] benzimidazol-4(3H)-one derivatives in solvent-free condition

Carbon-Based Solid Acid as an Efficient and Reusable Catalyst for the Synthesis of 1,8-Dioxodecahydroacridines Under Solvent-Free Conditions

“…Due to our interest in the synthesis of heterocyclic compounds, [23][24][25][26] and in continuation of our previous works on the applications of reusable catalysts in organic reactions, [27][28][29][30][31][32][33][34][35] herein we report the new efficient synthesis of 1,8-dioxodecahydroacridines using a CBSA as catalyst (Scheme 1).…”

Thiazolo[3,2-a]benzimidazoles: Synthetic Strategies, Chemical Transformations and Biological Activities

“…On the other hand, Davoodnia et al [ 90 ] reported the reaction of compound 178 with aroyl halides under microwave irradiation in solvent-free condition at 800 W to afford 2-arylpyrimido[4',5':4,5]-thiazolo[3,2- a ]benzimidazol-4(3 H )-ones 179 ( Scheme 51 ).…”

Investigation into the reaction of 2‐amino‐4,5‐dimethylthiophene‐3‐carboxamide with iso(and isothio)cyanates under microwave irradiation

“…In pursuing these studies and in continuation of our work on the synthesis of thieno [2,3-d]pyrimidine derivatives [16][17][18][19] and due to our interest in the utilization of microwave irradiation for the synthesis of heterocyclic compounds [20][21][22][23], in this paper we tried to synthesize some thieno [2,3-d]pyrimidine derivatives with regard to the reaction of compound 1 with isocyanates and isothiocyanates under microwave irradiation conditions (Scheme 1). …”