970-84-3Relevant academic research and scientific papers
Exploration of polystyrene-supported 2-isobutoxy-1-isobutoxycarbonyl-1,2- dihydroquinoline (PS-IIDQ) as new coupling agent for the synthesis of 8-substituted xanthine derivatives
Bandyopadhyay, Prabal,Sathe, Manisha,Sharma, Pratibha,Kaushik
supporting information; experimental part, p. 4631 - 4635 (2012/09/05)
Polystyrene-supported 2-isobutoxy-1-isobutoxycarbonyl-1,2-dihydroquinoline (PS-IIDQ), a polymer supported covalent coupling reagent, was successfully employed for the first time in the synthesis of 8-substituted xanthine derivatives. PS-IIDQ was observed
A facile and rapid one-step synthesis of 8-substituted xanthine derivatives via tandem ring closure at room temperature
Bandyopadhyay, Prabal,Agrawal, Sumit K.,Sathe, Manisha,Sharma, Pratibha,Kaushik
supporting information; experimental part, p. 3822 - 3827 (2012/07/02)
N-Bromo succinimide (NBS) was found to be an efficient and regioselective reagent in combination with AIBN for an unprecedented, facile and rapid one-step synthesis of 8-substituted xanthine derivatives at room temperature. The inexpensive, nontoxic and readily available NBS efficiently promoted the condensation of several aryl/cycloaryl/heteroaryl aldehydes with 5,6-diamino-1,3-dimethyluracils in presence of catalytic amount of AIBN in a single step via radical chain reaction. The notable advantages of this protocol were short reaction time, milder reaction conditions, simple work-up procedure, no requirement for chromatographic separation, use of non-hazardous reagent/solvent and applicable to a variety of substrates.
