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Published in 2019 at "Mendeleev Communications"
DOI: 10.1016/j.mencom.2019.05.016
Abstract: A novel protocol for the Castagnoli–Cushman reaction of dicarboxylic acids and imines comprises the use of 1,1′-carbonyldiimidazole as the cyclodehydrating agent to in situ produce the intermediate anhydrides. In contrast to previously developed procedure involving…
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Keywords:
reaction dicarboxylic;
dicarboxylic acids;
acids imines;
reaction ... See more keywords
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Published in 2019 at "Mendeleev Communications"
DOI: 10.1016/j.mencom.2019.05.033
Abstract: A novel synthetic protocol towards trans-NH-tetrahydroisoquinolonic acid esters is based on the Castagnoli–Cushman reaction between aromatic aldehyde oximes and homophthalic anhydride, followed by esterification and TiCl3-promoted reduction. The scope of the method with respect to…
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Keywords:
cushman reaction;
ammonia equivalent;
reduction;
hydroxylamine ammonia ... See more keywords
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Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.05.066
Abstract: Abstract The first example of the Castagnoli-Cushman reaction of homophthalic acid with an amine and an aldehyde conducted in a three-component format is reported. This new protocol employs no dehydrating agents and, unlike the traditional…
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Keywords:
castagnoli cushman;
three component;
component format;
cushman reaction ... See more keywords
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Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.08.049
Abstract: Abstract Indole-fused cyclic anhydrides earlier deemed unreactive in the Castagnoli-Cushman reaction with imines have been rendered valid participant in this process. The new reaction format involves the use of respective indole-based dicarboxylic acids and in…
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Keywords:
acetic anhydride;
castagnoli cushman;
privileged tetrahydropyrazino;
reaction ... See more keywords
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Published in 2023 at "Molecules"
DOI: 10.3390/molecules28062654
Abstract: Since the first reports of the reaction of imines and cyclic anhydrides by Castagnoli and Cushman, this procedure has been applied to the synthesis of a variety of lactams, some of them with important synthetic…
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Keywords:
reaction;
castagnoli cushman;
cushman reaction;