Sequential Conia-ene-type cyclization and Negishi coupling by cooperative functions of B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>, ZnI<sub>2</sub>, Pd(PPh<sub>3</sub>)<sub>4</sub> and an amine
作者:Min Cao、Ahmet Yesilcimen、Soumil Prasad、Jason Genova、Tanner Myers、Masayuki Wasa
DOI:10.1039/d0ob01678k
日期:——
cyclization/Negishi coupling for the union of alkynyl ketones and aryl iodides. This process is promoted through cooperative actions of Lewis acidic B(C6F5)3, ZnI2, Pd-based complex, and a Brønsted basic amine. The three Lewis acid catalysts with potential overlapping functions play their independent roles as activators of carbonyl group, alkyne moiety, and alkenyl zinc intermediate, respectively. A variety
我们公开了一种用于炔基酮和芳基碘化物联合的顺序Conia-ene型环化/Negishi偶联的方法。该过程是通过路易斯酸性B(C 6 F 5 ) 3、ZnI 2、Pd基络合物和布朗斯台德碱性胺的协同作用来促进的。三种具有潜在重叠功能的路易斯酸催化剂分别作为羰基、炔烃部分和烯基锌中间体的活化剂发挥各自独立的作用。可高效合成多种1,2,3-取代环戊烯。