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1.
J Org Chem ; 86(23): 17063-17070, 2021 12 03.
Artigo em Inglês | MEDLINE | ID: mdl-34797073

RESUMO

A tandem rhodium(III)-catalyzed system was established to access 3,4-dihydroisoquinolin-1(2H)-one by coupling of N-methoxy-3-methylbenzamide with 2-methylidenetrimethylene carbonate. This one-pot synthesis protocol processed smoothly under mild reaction conditions. Moreover, a total of 28 examples, broad substrate scope, and high functional-group compatibility were observed. Preliminary mechanism studies were also conducted and demonstrated that the rhodium(III) catalyst played a vital role in the C-H-allylation and N-alkylation cyclization process.


Assuntos
Ródio , Alquilação , Carbonatos , Catálise , Ciclização
2.
Org Lett ; 23(15): 5719-5723, 2021 08 06.
Artigo em Inglês | MEDLINE | ID: mdl-34286981

RESUMO

A rhodium(III)-catalyzed C-H allylation of (hetero)arenes by using 2-methylidenetrimethylene carbonate as an efficient allylic source has been developed for the first time. Five different directing groups including oxime, N-nitroso, purine, pyridine, and pyrimidine were compatible, delivering various branched allylarenes bearing an allylic hydroxyl group in moderate to excellent yields.

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