Blue light photoredox-catalysed acetalation of alkynyl bromides.
RSC Adv
; 9(62): 36213-36216, 2019 Nov 04.
Article
em En
| MEDLINE
| ID: mdl-35540617
ABSTRACT
Herein, we report an organo-photoredox-based protocol using 2,2-diethoxyacetic acid as the acetal source to achieve acetalation of alkynyl bromides to afford various alkynyl acetal products. In addition to arylethynyl bromides, substrates bearing heteroaryl rings (thiophene, pyridine, and indole) smoothly gave the corresponding acetalation products. This mild protocol has potential utility for the synthesis of aldehydes by further protonization.
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MEDLINE
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En
Ano de publicação:
2019
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Article