A New synthesis of functionalized imidazo[2,1-b][1,3]thiazines with thiohydantoins, isocyanides and dialkyl acetylenedicarboxylates

Subject Areas :

Pegah Mohagheghzadeh ¹ (Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran)
Soheila Ghassamipoor ² (Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran)
Mohammad Mehdi Ghanbari ³ (Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran)
Elham Ahmadi ⁴ (Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran)

Received: 2016-05-29 Accepted : 2016-05-29 Published : 2011-05-01

Keywords: Thiohydantoin, Imidazo[2, 1-b][1, 3]thiazine, isocyanide, Acetylenedicarboxylate, Zwitterionic,

Abstract :

The reaction of stoichiometric amounts of dialkyl acetylenedicarboxylates with alkyl isocyanides and 5,5-diaryl thiohydantoins in toluene and catalytic amount of p-TSA afforded imidazo[2,1-b][1,3]thiazines in good overall yields