One-pot tandem approach for the synthesis of benzimidazoles and benzothiazoles from alcohols
作者:Goravanahalli M. Raghavendra、Ajjahalli B. Ramesha、Cigalli N. Revanna、Kebbahalli N. Nandeesh、Kempegowda Mantelingu、Kanchugarakoppal S. Rangappa
DOI:10.1016/j.tetlet.2011.08.037
日期:2011.10
Propylphosphonic anhydride (®T3P) has been demonstrated to be an efficient and mild reagent for the one-pot synthesis of benzimidazoles and benzothiazoles from variety of alcohols. Mild conditions, short reaction time, broad functional group tolerance, low epimerization, easy and quick isolation of the products, excellent chemo selectivity, and excellent yields are main advantages of this procedure
已证明丙基膦酸酐(®T3P)是一种高效温和的试剂,用于由多种醇一锅合成苯并咪唑和苯并噻唑。温和的条件,短的反应时间,宽泛的官能团耐受性,低差向异构化,产物的简便快速分离,优异的化学选择性和优异的收率是该方法的主要优点。因此,本方法利用醇代替醛。