Research output: Contribution to journal › Article › peer-review
New reagent space and new scope for the Castagnoli-Cushman reaction of oximes and 3-arylglutaconic anhydrides. / Банных, Антон Викторович; Левашова, Екатерина Юрьевна; Бакулина, Ольга Юрьевна; Красавин, Михаил Юрьевич.
In: Organic and Biomolecular Chemistry, Vol. 86, No. 44, 16.11.2022, p. 8643-8648.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - New reagent space and new scope for the Castagnoli-Cushman reaction of oximes and 3-arylglutaconic anhydrides
AU - Банных, Антон Викторович
AU - Левашова, Екатерина Юрьевна
AU - Бакулина, Ольга Юрьевна
AU - Красавин, Михаил Юрьевич
N1 - Publisher Copyright: © 2022 The Royal Society of Chemistry.
PY - 2022/11/16
Y1 - 2022/11/16
N2 - The Castagnoli-Cushman reaction of oximes, discovered originally for homophthalic anhydride, stimulated the search for other cyclic anhydrides that would be workable in that reaction. Finally, 3-arylglutaconic acid anhydrides were identified as displaying the right reactivity towards a wide range of oximes (including those which did not react with homophthalic anhydride, such as derivatives of aliphatic aldehydes or ketones and substrates with nucleophilic side groups) and delivering, after 18 h at 110 °C in DMSO, β,γ-unsaturated N-hydroxylactam products lacking the carboxylic acid functionality as the result of decarboxylation accompanying the cyclocondensation process. The reaction was found to be scalable to gram quantities of the starting anhydrides. The products were shown to be easily amenable to post-condensational double-bond transposition or reduction. As expected from cyclic hydroxamic acids, the reaction products were shown to bind Fe(iii) and Cu(ii) ions (selectively out of a panel of 16 metal cations) and potentially serve as fluorescent metal sensors.
AB - The Castagnoli-Cushman reaction of oximes, discovered originally for homophthalic anhydride, stimulated the search for other cyclic anhydrides that would be workable in that reaction. Finally, 3-arylglutaconic acid anhydrides were identified as displaying the right reactivity towards a wide range of oximes (including those which did not react with homophthalic anhydride, such as derivatives of aliphatic aldehydes or ketones and substrates with nucleophilic side groups) and delivering, after 18 h at 110 °C in DMSO, β,γ-unsaturated N-hydroxylactam products lacking the carboxylic acid functionality as the result of decarboxylation accompanying the cyclocondensation process. The reaction was found to be scalable to gram quantities of the starting anhydrides. The products were shown to be easily amenable to post-condensational double-bond transposition or reduction. As expected from cyclic hydroxamic acids, the reaction products were shown to bind Fe(iii) and Cu(ii) ions (selectively out of a panel of 16 metal cations) and potentially serve as fluorescent metal sensors.
KW - Anhydrides/chemistry
KW - Ferric Compounds/chemistry
KW - Hydroxamic Acids/chemistry
KW - Indicators and Reagents
KW - Oximes/chemistry
UR - http://www.scopus.com/inward/record.url?scp=85141467729&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/1d2830dd-dc5c-3beb-a018-6fb6731c50ab/
U2 - 10.1039/d2ob01675c
DO - 10.1039/d2ob01675c
M3 - Article
C2 - 36281787
VL - 86
SP - 8643
EP - 8648
JO - Organic and Biomolecular Chemistry
JF - Organic and Biomolecular Chemistry
SN - 1477-0520
IS - 44
ER -
ID: 100702384