Synthetic Route of 70918-54-6, New Advances in Chemical Research, May 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. In a document type is Article, and a compound is mentioned, 70918-54-6, Name is (S)-1,4-Benzodioxane-2-carboxylic acid, introducing its new discovery.
A new Ag-catalyzed oxidative bicyclization of N-tethered 1,7-enynes with alkylcarboxylic acids for forming 41 examples of polycyclic 3,4-dihydroquinolin-2(1H)-ones has been established using readily accessible K2S2O8 as an oxidant. The reaction pathway involves a silver-catalyzed decarboxylation/in situ-generated C-center radical-triggered alpha,beta-conjugated addition/6-exo-dig cyclization/H-abstraction/5-endo-trig cyclization/SET sequence, allowing direct site-selective decarboxylative C(sp3)-H functionalization toward the formation of multiple C-C bonds and rapid construction of complex spiroheterocycles.
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