[EN] COMPOUNDS USEFUL AS INHIBITORS OF JAK AND OTHER PROTEIN KINASES [FR] COMPOSES UTILES COMME INHIBITEURS DE PROTEINES JAK ET AUTRES PROTEINES KINASE
Sulfamic acid catalyzed one-pot, three-component green approach: synthesis and cytotoxic evaluation of pyrazolyl-thiazole congeners
作者:B. Sridevi、Yellaiah Tangella、Korrapati Suresh Babu、Jagadeesh Babu Nanubolu、R. Sunitha Rani、C. Ganesh Kumar、H. M. Meshram、Ahmed Kamal
DOI:10.1039/c7nj00042a
日期:——
operationally simple and one-pot multi-component approach has been developed for the construction of pyrazolyl-thiazoles using sulfamic acid (H2NSO3H) as a green catalyst in water. The notable features of this protocol include mild reaction conditions, enhanced selectivity with good yields and wide substrate scope, which makes it an attractive and useful process for the synthesis of biologically important
Tunable Key [3 + 2] and [2 + 1] Cycloaddition of Enaminones and α-Diazo Compounds for the Synthesis of Isomeric Isoxazoles: Metal-Controlled Selectivity
作者:Wenli Song、Yunyun Liu、Nan Yan、Jie-Ping Wan
DOI:10.1021/acs.orglett.3c00636
日期:2023.3.31
esters/ketones, and t-butyl nitrite (TBN) for the switchable synthesis of isomeric isoxazoles have been realized. The catalysis with Cu(II) salt provides 3,4-disubsituted isoxazoles via [3 + 2] cycloaddition. On the other hand, the catalysis of Ag(I) with identical substrates leads to isomeric isoxazoles with reversed C3 and C4 substitution based on a key [2 + 1] cycloaddition.