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1.
Org Biomol Chem ; 17(48): 10223-10227, 2019 12 28.
Artículo en Inglés | MEDLINE | ID: mdl-31777898

RESUMEN

A novel, sustainable, environmentally friendly, high substrate scope, efficient, solvent-free and metal catalyst-free method for the cross-dehydrogenative coupling (CDC) reaction between N-hydroxyphthalimide (NHPI) and benzyl/ether compounds is described. This coupling reaction proceeds through ultrasound acceleration. Compared to conventional heating conditions, the use of ultrasound techniques not only improves the reaction efficiency and enhances the reaction rate but also minimizes the side reactions.

2.
ACS Omega ; 6(40): 25940-25949, 2021 Oct 12.
Artículo en Inglés | MEDLINE | ID: mdl-34660956

RESUMEN

A novel metal catalyst-free and environmentally friendly method for the regioselective iodination of imidazo[1,2-α]pyridines at their C3 position is disclosed, which has a wide substrate scope and could be sustainable. This reaction proceeds through ultrasound acceleration in the presence of a green alcohol solvent. Compared with a conventional heating system, the reaction efficiency and the rate are significantly improved and the iodine atom economy is maximized using ultrasound techniques.

3.
ACS Omega ; 6(40): 26273-26281, 2021 Oct 12.
Artículo en Inglés | MEDLINE | ID: mdl-34660986

RESUMEN

We report a novel, inexpensive double thiolation reagent that sulfurizes a broad range of imidazo[1,2-α]pyridines under mild conditions. Importantly, diethylaminosulfur trifluoride, as a common nucleophilic fluorinating reagent, was utilized as a novel thiolation reagent.

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