描述了一种在无溶剂介质中制备4 H-嘧啶并[2,1- b ]苯并噻唑衍生物的新型氟化铁辅助方便高效策略。该反应可以在低催化剂负载下以优异的官能团耐受性进行。催化剂可以容易地回收并再用于至少三轮反应的下一步反应,而对产物的收率没有任何明显的影响。易于回收的催化剂和高收率的产品使该方案具有吸引力,可持续性和经济性。
One-Pot, Multicomponent Sequential Synthesis of Benzothiazoloquinazolinones
作者:Bhupesh K. Sharma、Praveen Kumar Sharma、M. Kumar
DOI:10.1080/00397910903243807
日期:2010.7.27
Benzothiazolo[2,3-b]quinazolin-1-ones have been synthesized by a multicomponent reaction of substituted 2-aminobenzothiazoles with cyclic -diketone and aromatic aldehydes in the presence of absolute ethanol. The structures of the synthesized benzothiazoloquinazolinones have been characterized by elemental analysis and spectral studies.
Iron fluoride: the most efficient catalyst for one-pot synthesis of 4H-pyrimido[2,1-b]benzothiazoles under solvent-free conditions
作者:Amol B. Atar、Yong Seok Jeong、Yeon Tae Jeong
DOI:10.1016/j.tet.2014.05.094
日期:2014.8
A new iron fluoride assisted convenient and efficient strategy for the preparation of 4H-pyrimido[2,1-b]benzothiazolesderivatives in solvent-free media is described. The reactions can be performed at low-catalyst loadings with excellent functional group tolerance. The catalyst can be readily recovered and reused for next reaction for at least three runs without any significant impact on the yields
描述了一种在无溶剂介质中制备4 H-嘧啶并[2,1- b ]苯并噻唑衍生物的新型氟化铁辅助方便高效策略。该反应可以在低催化剂负载下以优异的官能团耐受性进行。催化剂可以容易地回收并再用于至少三轮反应的下一步反应,而对产物的收率没有任何明显的影响。易于回收的催化剂和高收率的产品使该方案具有吸引力,可持续性和经济性。