Results 151 to 160 of about 1,960 (188)
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ChemInform, 2014
AbstractVicinal diketo amides react with isonitriles and carboxylic acids to α‐acyloxy β‐keto carboxamides.
Jan Rossbach, Klaus Harms, Ulrich Koert
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AbstractVicinal diketo amides react with isonitriles and carboxylic acids to α‐acyloxy β‐keto carboxamides.
Jan Rossbach, Klaus Harms, Ulrich Koert
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Regioselective Passerini and Passerini–Knoevenagel Reactions with vic‐Diketo Amides
European Journal of Organic Chemistry, 2013AbstractThe Passerini reaction of vic‐diketo amides with a variety of isocyanides and carboxylic acids has been examined. α‐Acyloxy β‐keto carboxamides were formed regioselectively as the major products. For the Passerini reactions with electron‐withdrawing‐group‐substituted acetic acids, a one‐pot Passerini–Knoevenagel reaction was accomplished by the
Jan Roßbach, Klaus Harms, Ulrich Koert
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Still Unconquered: Enantioselective Passerini and Ugi Multicomponent Reactions
Accounts of Chemical Research, 2018The Passerini three-component (P-3CR) and the Ugi four-component (U-4CR) are two of the most prominent isocyanide-based multicomponent reactions (IMCRs). The P-3CR transforms isocyanides, aldehydes (ketones), and carboxylic acids to α-acyloxy carboxamides, while the U-4CR converts isocyanides, aldehydes (ketones), amines, and carboxylic acids to α ...
Qian Wang +3 more
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The Journal of Organic Chemistry, 2016
Eleven formyl-containing BODIPY dyes were prepared by means of either the Liebeskind-Srogl cross-coupling reaction or the Vilsmeier reaction. These dyes were used as components in the Passerini reaction to give highly substituted BODIPY dyes. A joined spectroscopic and theoretical characterization of the synthesized compounds was conducted to unravel ...
Diana E, Ramírez-Ornelas +7 more
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Eleven formyl-containing BODIPY dyes were prepared by means of either the Liebeskind-Srogl cross-coupling reaction or the Vilsmeier reaction. These dyes were used as components in the Passerini reaction to give highly substituted BODIPY dyes. A joined spectroscopic and theoretical characterization of the synthesized compounds was conducted to unravel ...
Diana E, Ramírez-Ornelas +7 more
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Enhanced reactivity of dendrons in the Passerini three-component reaction
Chemical Communications, 2015An unexpected substituent effect that accelerates Passerini reactions in THF has enabled the synthesis of three generations of dendrimers.
Jo-Ann, Jee +2 more
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Nonorganometallic pathway of the Passerini reaction assisted by titanium tetrachloride
Organometallics, 1993The Passerini reaction assisted by TiCl4 is a three component reaction (RNC, R'2CO, TiCl4) leading to C-C bond formation between the carbonyl and the isonitrile groups, and the formation of alpha-hydroxy amides. In order to clarify the mechanism of the reaction, we have isolated TiCl4-RNC and TiCl4-R2CO adducts, {2,6-Me2C6H3NC)TiCl3]2(mu-Cl)2}2, 2 ...
CAROFIGLIO, TOMMASO +4 more
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Passerini reaction: Synthesis and applications in polymer chemistry
European Polymer Journal, 2023Aditi Arora, Brajendra K Singh
exaly