Laccase-Catalyzed Domino Reaction between Catechols and 6-Substituted 1,2,3,4-Tetrahydro-4-oxo-2-thioxo-5-pyrimidinecarbonitriles for the Synthesis of Pyrimidobenzothiazole Derivatives
作者:Heba T. Abdel-Mohsen、Jürgen Conrad、Uwe Beifuss
DOI:10.1021/jo401193e
日期:2013.8.16
The laccase-catalyzed domino reaction between catechols and 6-substituted 1,2,3,4-tetrahydro-4-oxo-2-thioxo-5-pyrimidinecarbonitriles using aerial O2 as the oxidant delivers new pyrimidobenzothiazole derivatives. The complete structure elucidation of the ring-proton deficient heterocyclic products and the unambiguous determination of the regioselectivity of the reactions have been achieved by extended
儿茶酚与6-取代的1,2,3,4-四氢-4-氧代-2-氧代-2-硫代氧-5-嘧啶腈之间的漆酶催化的多米诺反应,使用空中的O 2作为氧化剂,可提供新的嘧啶并苯并噻唑衍生物。通过扩展的NMR光谱方法,包括HSQMBC,超长距离HMBC和15 N测量,已经完成了对环质子缺陷杂环产物的完整结构阐明和对反应区域选择性的明确测定。