Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free Conditions

Functionalization of amide bond via the cleavage of a non-carbonyl, C-N &#963; bond remains under-investigated. In this work, a transition-metal-free single-electron transfer reaction has been developed for the C-N &#963; bond cleavage of <i>N</i>-acylazetidines using the electri...

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Main Authors: Hengzhao Li, Zemin Lai, Adila Adijiang, Hongye Zhao, Jie An
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/24/3/459
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author Hengzhao Li
Zemin Lai
Adila Adijiang
Hongye Zhao
Jie An
author_facet Hengzhao Li
Zemin Lai
Adila Adijiang
Hongye Zhao
Jie An
author_sort Hengzhao Li
collection DOAJ
description Functionalization of amide bond via the cleavage of a non-carbonyl, C-N &#963; bond remains under-investigated. In this work, a transition-metal-free single-electron transfer reaction has been developed for the C-N &#963; bond cleavage of <i>N</i>-acylazetidines using the electride derived from sodium dispersions and 15-crown-5. Of note, less strained cyclic amides and acyclic amides are stable under the reaction conditions, which features the excellent chemoselectivity of the reaction. This method is amenable to a range of unhindered and sterically encumbered azetidinyl amides.
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spelling doaj.art-88b249bf63954588b4c4ed7d3b2e98ca2022-12-21T20:02:51ZengMDPI AGMolecules1420-30492019-01-0124345910.3390/molecules24030459molecules24030459Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free ConditionsHengzhao Li0Zemin Lai1Adila Adijiang2Hongye Zhao3Jie An4College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, ChinaCollege of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, ChinaCollege of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, ChinaCollege of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, ChinaCollege of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, ChinaFunctionalization of amide bond via the cleavage of a non-carbonyl, C-N &#963; bond remains under-investigated. In this work, a transition-metal-free single-electron transfer reaction has been developed for the C-N &#963; bond cleavage of <i>N</i>-acylazetidines using the electride derived from sodium dispersions and 15-crown-5. Of note, less strained cyclic amides and acyclic amides are stable under the reaction conditions, which features the excellent chemoselectivity of the reaction. This method is amenable to a range of unhindered and sterically encumbered azetidinyl amides.https://www.mdpi.com/1420-3049/24/3/459amidesC-N σ bond cleavagesodiumcrown ether
spellingShingle Hengzhao Li
Zemin Lai
Adila Adijiang
Hongye Zhao
Jie An
Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free Conditions
Molecules
amides
C-N σ bond cleavage
sodium
crown ether
title Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free Conditions
title_full Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free Conditions
title_fullStr Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free Conditions
title_full_unstemmed Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free Conditions
title_short Selective C-N σ Bond Cleavage in Azetidinyl Amides under Transition Metal-Free Conditions
title_sort selective c n σ bond cleavage in azetidinyl amides under transition metal free conditions
topic amides
C-N σ bond cleavage
sodium
crown ether
url https://www.mdpi.com/1420-3049/24/3/459
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AT zeminlai selectivecnsbondcleavageinazetidinylamidesundertransitionmetalfreeconditions
AT adilaadijiang selectivecnsbondcleavageinazetidinylamidesundertransitionmetalfreeconditions
AT hongyezhao selectivecnsbondcleavageinazetidinylamidesundertransitionmetalfreeconditions
AT jiean selectivecnsbondcleavageinazetidinylamidesundertransitionmetalfreeconditions