Photo-induced phosphorylation/cyclization of N -homoallyl and N -allyl aldehyde hydrazones to access phosphorylated tetrahydropyridazines and dihydropyrazoles

A photocatalytic radical carbophosphorylation/cyclization of -homoallyl aldehyde hydrazones with phosphine oxides was developed under metal-free conditions, achieving phosphorylated tetrahydropyridazines in yields up to 95%. Phosphorylated dihydropyrazoles were also constructed, by reacting -allyl a...

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Published in:Chemical communications (Cambridge, England) England), 2024-04, Vol.60 (35), p.4687-4690
Main Authors: Liu, Lingli, Wu, Yechun, Xiang, Chengli, Yu, Jin-Tao, Pan, Changduo
Format: Article
Language:English
Subjects:
Aldehydes
Hydrazones
Phosphine oxide
Phosphorylation
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description A photocatalytic radical carbophosphorylation/cyclization of -homoallyl aldehyde hydrazones with phosphine oxides was developed under metal-free conditions, achieving phosphorylated tetrahydropyridazines in yields up to 95%. Phosphorylated dihydropyrazoles were also constructed, by reacting -allyl aldehyde hydrazones with phosphine oxides under the same conditions.
doi_str_mv 10.1039/d4cc00608a
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source Royal Society of Chemistry Journals
subjects Aldehydes
Hydrazones
Phosphine oxide
Phosphorylation
title Photo-induced phosphorylation/cyclization of N -homoallyl and N -allyl aldehyde hydrazones to access phosphorylated tetrahydropyridazines and dihydropyrazoles
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