C-H Borylation of Benzophenones Using Hydrazone as the Traceless Directing Group.
Org Lett
; 25(31): 5875-5879, 2023 Aug 11.
Article
em En
| MEDLINE
| ID: mdl-37498107
ABSTRACT
C-H borylation is one of the powerful C-H bond functionalization reactions. In this context, a metal-free C-H borylation of benzophenones using hydrazone as the traceless directing group has been reported. The dibromoboron intermediates can be obtained in excellent yields, and the corresponding arylboronic esters are generated in moderate to excellent yields. Furthermore, the borylated compounds can be transformed in a one-pot method, avoiding the loss of overall yield caused by the separation of the arylboronic esters.
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MEDLINE
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En
Ano de publicação:
2023
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Article