Stereodivergent Synthesis of (<i>Z</i>)-/(<i>E</i>)-β-Sulfonylacrylamides via Tandem Difunctionalization of Alkynes with Sulfinates and Isocyanides
作者:Shashank Tripathi、Monty Kumar、Mayur D. Ambule、Ankit Saxena、Ruchir Kant、Sanjeev K. Shukla、Ajay Kumar Srivastava
DOI:10.1021/acs.orglett.2c03092
日期:2022.10.21
prepare (Z)-/(E)-β-sulfonylacrylamides. The (Z)-β-sulfonylacrylamides were generated via a one-pot process that involves the reaction of terminal alkynes with sulfinates and isocyanides in the presence of iodine in sequential manner. The (E)-β-sulfonylacrylamides were prepared in a two-step synthesis via palladium(II)-catalyzed addition of isocyanide to (E)-β-iodovinylsulfones synthesized from alkynes.
已实现末端和内部炔烃与各种亚磺酸盐和异氰化物的立体选择性双官能化,以制备 ( Z )-/( E )-β-磺酰基丙烯酰胺。( Z )-β-磺酰基丙烯酰胺是通过一锅法生成的,该过程涉及末端炔烃与亚磺酸盐和异氰化物在碘存在下以顺序方式反应。( E )-β-磺酰基丙烯酰胺是通过钯 (II) 催化的异氰化物加成到由炔烃合成的 ( E )-β-碘代乙烯基砜的两步合成制备的。